BSE

** Shares of stock exchange operator BSE BSEL.NS rise as much as 8.06% to 2899.9 rupees, their highest intraday percentage climb in two months

** Stock up after the Reserve Bank of India deferred the implementation of rules for banks' exposure to capital markets until July 1

** The rules were initially due to be effective from April 1

** BSE is likely to benefit from the RBI's deferral as it gives brokers and proprietary traders more time to adapt, says Jefferies

** Adds that deferral allows continued use and renewal of bank guarantees for up to a year by brokers and traders, which in turn eases funding and collateral pressures and supports trading activity on the exchange

** BSE shares up 2% in 2026 so far, exchange data shows

(Reporting by Bharath Rajeswaran in Bengaluru)

((bharath.rajeswaran@thomsonreuters.com; +91 9769003463;))

March 5 (Reuters) - BSE Ltd BSEL.NS:

• TO CONDUCT MOCK TRADING FOR EQUITY, EQUITY DERIVATIVES, CURRENCY DERIVATIVES, COMMODITY DERIVATIVES SEGMENTS ON MARCH 7

Source text: [ID:]

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;))

March 4 (Reuters) - BSE Ltd BSEL.NS:

• RECEIVES SEBI APPROVAL TO LAUNCH DERIVATIVES ON SENSEX NEXT 30 INDEX

Source text: ID:nNSEhWqXB

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;;))

** Exchange operator BSE's shares BSEL.NS fall 3.1%, while Angel One ANGO.NS, Nuvama Wealth NUVA.NS, Nippon Life NIPF.NS and 360 One Wam ONEW.NS slide 1%-4.5%

** Drop follows comments from NSE's managing director and CEO Ashish Chauhan at a Thursday event that regulators and exchanges will keep tightening rules to curb excessive speculation in high-risk futures and options

** Chauhan said India could adopt minimum eligibility norms for derivatives, like Singapore and the U.S., using suitability checks and financial thresholds

** It's high time India put similar measures in place so the lower strata of society is not left bleeding money in derivatives, Chauhan said

** Earlier this month, the central bank proposed rule changes that prohibit banks from lending for proprietary trading, while the government raised transaction taxes on derivatives in the union budget on Feb 1

** India's markets regulator has also rolled out multiple steps recently to cool the explosive growth in equity derivatives, where 90% of retail investors incur losses, according to an official study

(Reporting by Bharath Rajeswaran in Bengaluru)

((bharath.rajeswaran@thomsonreuters.com; +91 9769003463;))

Feb 20 (Reuters) - BSE Ltd BSEL.NS:

• MOCK TRADING SESSION FOR EQUITY, EQUITY DERIVATIVES, CURRENCY DERIVATIVES, COMMODITY DERIVATIVES SEGMENTS ON SATURDAY

((Reuters.Briefs@thomsonreuters.com;;))

Updates share levels, adds brokerage comments in paragraphs 3,8

Feb 16 (Reuters) - Shares of Indian bourse BSE BSEL.NS led losses among bourse and brokerage stocks on Monday, dropping as much as 9.9%, after the country's central bank tightened norms for bank lending to stock brokers and other market intermediaries.

On Friday, the Reserve Bank of India issued revised norms regarding banks' lending to capital market participants, including higher collateral requirements for bank guarantees and a ban on lending for proprietary trading by brokers.

Proprietary trading, which involves using a company's own funds to trade, accounts for 50% of equity options premium turnover, according to Jefferies. Stricter collateral requirements for bank financing to such traders would raise costs.

Stock brokers Groww BILO.NS, Angel One ANGO.NS and Motilal Oswal Financial Services MOFS.NS fell as much as 4.8%, 9.5% and 3.3%, respectively.

The revised norms will take effect from April 1.

The new rules, in conjunction with the recently hiked transaction tax on equity futures and options, are expected to dampen derivative trading volumes. India's federal government and financial regulators have taken several steps to cool the derivative trading market, where retail investors have made losses.

Jefferies pegs BSE as the most affected by the new regulations on proprietary trading, which could result in a 10% earnings impact on the exchange operator.

Angel One would need to "immediately relook" its funding for the margin trading facility, JM Financial analysts said in a note, while Groww may need to raise funds from the market.

(Reporting by Nandan Mandayam in Bengaluru; Editing by Rashmi Aich and Janane Venkatraman)

((Nandan.Mandayam@thomsonreuters.com; Mobile: +91 9591011727;))

Feb 13 (Reuters) - BSE Ltd BSEL.NS:

• BSE- GETS APPROVAL FROM SEBI TO LAUNCH DERIVATIVE CONTRACTS ON BSE FOCUSED MIDCAP INDEX

Source text: [ID:]

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;))

** Shares of BSE BSEL.NS jump 6.2% to 3,169.70 rupees, set to gain for the third straight session

** Exchange operator's third-quarter consolidated net profit surges to 6.02 billion rupees ($66.4 million) from 2.2 billion rupees a year ago

** Q3 consol revenue jumps 62% Y/Y to 12.44 bln rupees

** Brokerage Jefferies says BSE's options market share has increased above 30% in December and continued to grow in January

** "While market share gains remain a key short-term growth driver, lack of clarity on new products could become a growth challenge post FY29," Jefferies says

** Nuvama raises PT to 3,760 rupees from 3,130 rupees

** Trading vols 1.1x the 30-day average at 5.1 million shares

** BSEL rose 48% in 2025

($1 = 90.6925 Indian rupees)

(Reporting by Vijay Malkar)

((VijayDattaram.Malkar@thomsonreuters.com;))

Feb 9 (Reuters) - BSE Ltd BSEL.NS:

• BSE LTD - DEC-QUARTER CONSOL NET PROFIT 6.02 BILLION RUPEES

• BSE LTD - DEC-QUARTER CONSOL REVENUE FROM OPERATIONS 12.44 BILLION RUPEES

Source text: ID:nNSE8TN38s

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;))

Updates with details from BSE Notice in paragraphs 3-4

By Vivek Kumar M

Feb 6 (Reuters) - Some Indian stock brokerages continued to face challenges in settling trades on Friday even after National Securities Depository Ltd NATS.BO said its services had returned to normal, according to sources at three large brokerages.

A network-related issue led to a temporary delay in services, and after moving operations to a disaster recovery site, "operations are functioning normally", NSDL - India's largest depository by value of assets under custody - said in a post on X. The depository referred Reuters to the post when asked for comment.

Indian Clearing Corporation Ltd's settlement-related activities were disrupted due to technical issues faced by one of the market infrastructure institutions, a BSE BSEL.NS notice said on Friday.

ICCL is in close coordination with other market infrastructure institutions to normalise the settlement process, the notice added.

Since Tuesday, brokerages have intermittently faced technical issues, where stocks bought by clients did not reflect in their portfolios due to settlement issues, two of the three sources said, declining to be identified as they are not authorised to speak to the media.

This has meant some customers could not sell the stocks or exit their positions, they said, adding that the issue has persisted through Friday.

Reuters could not determine how widespread the problem was. India's other depository, Central Depository Services Limited, said the matter did not pertain to them.

"Due to a technical issue at the depository, shares bought on Wednesday have not yet been settled across all brokers," one of India's largest brokerage firms, Zerodha, said in a statement on its website earlier in the day.

Markets regulator Securities and Exchange Board of India did not immediately respond to a Reuters' request for comment.

"There has been (a) lot of chaos at brokerage firms," one of the three sources said.

Because of delays in receiving trading-related files from the depository, the brokerage and its clients have struggled with reconciling trades, he added.

(Reporting by Vivek Kumar M and Hritam Mukherjee in Bengaluru; Editing by Ronojoy Mazumdar and Leroy Leo)

((mailto: hritam.mukherjee@thomsonreuters.com; @MukherjeeHritam;))

** Shares of Indian stock brokers and BSE fall up to 10%

** In federal budget, Indian Finance Minister announced proposal for higher securities transaction tax on future trading

** Angel One ANGO.NS and Stock exchange BSE BSEL.NS both down 10%, while Groww BILO.NS falls 8.5%

(Reporting by Urvi Dugar in Bengaluru)

((UrviManoj.Dugar@thomsonreuters.com;))

Writes through with context, SEBI chair comments

MUMBAI, Jan 15 - India's government has approved a cut to the minimum proportion of shares large companies looking to list must sell to 2.5% of their share capital from 5%, the markets regulator said on Thursday, paving the way for Reliance Jio Platforms' highly-anticipated IPO.

The Securities and Exchange Board of India also agreed in principle to the National Stock Exchange's application to settle a legal dispute that has delayed the NSE's initial public offering, SEBI Chair Tuhin Kanta Pandey said.

The regulator last year halved the minimum IPO float for large companies, allowing those valued above 5 trillion rupees ($57 billion) after listing to sell just 2.5% of their paid-up capital.

The measure, aimed at making it easier for the market to absorb the hefty offerings, was awaiting government approval to come into effect.

Reliance's RELI.NS telecom arm Jio Platforms is considering a listing this year that would float 2.5% of the firm, potentially making it India's largest-ever IPO worth more than $4 billion.

The regulator has been easing regulations and fast-tracking clearances in the world's second-largest market for initial public offerings.

On Saturday, Pandey said that the regulator will this month issue the approval needed for NSE to launch its stock market offering.

Reuters reported on Monday that the exchange plans to file draft listing papers by end-March and is in discussions with investment bankers and law firms to gauge investor appetite.

NSE, the world's largest derivatives exchange, has been trying to go public since 2016 but failed to secure regulatory approval due to pending legal cases and governance concerns. Its main domestic rival BSE Ltd BSEL.NS is listed.

(Reporting by Jayshree P Upadhyay in Mumbai, Writing by Urvi Dugar and Nishit Navin in Bengaluru; Editing by Nivedita Bhattacharjee and Emelia Sithole-Matarise)

((UrviManoj.Dugar@thomsonreuters.com; +91 9558725583;))

Jan 9 (Reuters) - BSE Ltd BSEL.NS:

• BSE INDEX SERVICES LAUNCHES BSE ALL DERIVATIVE STOCKS INDEX

• BSE ALL DERIVATIVE STOCKS INDEX AIMS TO TRACK PERFORMANCE OF CONSTITUENTS OF BSE 500 INDEX LINKED TO DERIVATIVE TRADING

Source text: [ID:]

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;))

Oct 9 (Reuters) - BSE Ltd BSEL.NS:

• BSE: MOCK TRADING ON OCTOBER 11 FOR COMMODITY DERIVATIVES, EQUITY, CURRENCY DERIVATIVES, EQUITY DERIVATIVES SEGMENTS

Source text: [ID:]

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;))

Sept 18 (Reuters) - BSE Ltd BSEL.NS:

• BSE - SCHEDULES MOCK TRADING SESSION FOR ELECTRONIC GOLD RECEIPTS, EQUITY SEGMENT ON SEPT 20

• BSE: SCHEDULES MOCK TRADING SESSION FOR EQUITY, COMMODITY, CURRENCY DERIVATIVES SEGMENTS ON SEPT 20

Source text: [ID:]

Further company coverage: BSEL.NS

((reuters.briefs@thomsonreuters.com;))

Sept 12 (Reuters) - BSE Ltd BSEL.NS:

• BSE: EXCHANGE SCHEDULES MOCK TRADING SESSION FOR EQUITY, EQUITY DERIVATIVES SEGMENTS ON SEPT 13

• BSE: SCHEDULES MOCK TRADING SESSION FOR CURRENCY DERIVATIVES, COMMODITY DERIVATIVES, ELECTRONIC GOLD RECEIPT SEGMENTS ON SEPT 13

Further company coverage: BSEL.NS

((reuters.briefs@thomsonreuters.com;))

** Shares of BSE BSEL.NS fall 3.3% and Angel One ANGO.NS fall 4.1%

** India market regulator SEBI will float a consultation paper on ending weekly F&O contracts within a month, CNBC-TV18 reports citing sources

** SEBI plans transition to monthly expiries and may consider same-day expiry across all exchanges, report adds

** Regulator's board likely to be briefed on longer derivative tenures on September 12 and consultation with exchanges to start from next week, report says

** Year-to-date, BSEL up about 24% and Angel One down around 24%

(Reporting by Vijay Malkar)

((VijayDattaram.Malkar@thomsonreuters.com;))

Aug 22 (Reuters) - India's markets regulator proposed that closing auction session to determine prices of shares will first be introduced for derivatives stocks, according to its consultation paper published on Friday.

The regulator will first introduce such a session for highly liquid shares, followed by other equity segments, it said.

A closing auction session is a trading period usually held at or near the end of a trading day to determine the final closing price of a security.

(Reporting by Nandan Mandayam in Bengaluru; Editing by Shilpi Majumdar)

((Nandan.Mandayam@thomsonreuters.com; Mobile: +91 9591011727;))

** Shares of exchange operator BSE BSEL.NS and broker Angel One ANGO.NS fall about 5% each after India's markets regulator signals tighter rules for equity derivatives

** Securities and Exchange Board of India's chairman Tuhin Kanta Pandey tells the capital markets conference there is a need to extend the tenure of derivative contracts, and a consultation paper will follow

** Regulator has already curbed contract expiries and raised lot sizes amid a surge in retail-driven trading

** Longer tenures and bigger lots are expected to make speculative bets costlier, cooling the high-frequency churn that generates a bulk of revenue for brokers and exchanges

** Derivatives contribute over half of BSE's revenue and 77% of ANGO's

** So far in 2025, BSEL is up 42.2% while ANGO is down 7.2%

(Reporting by Bharath Rajeswaran in Bengaluru)

((bharath.rajeswaran@thomsonreuters.com; +91 9769003463;))

By Jayshree P Upadhyay

MUMBAI, Aug 18 (Reuters) - India's markets regulator on Monday proposed a phased approach to restructuring existing equity indices that are linked to derivatives contracts to prevent market manipulation.

Analysts expect these changes to make the indexes less prone to external interference, a key focus against the backdrop of a regulatory order last month that had temporarily barred U.S.-based firm Jane Street for its trading activity in a key index.

The proposal, first floated in May, seeks to restructure the two indexes of banking stocks - NSE's Nifty Bank .NSEBANK and BSE's Bankex .BSEBANK - as well as Nifty Financial Services .NIFTYFIN in a phased manner.

The Securities and Exchange Board of India (SEBI) had suggested the indexes would need to have at least 14 stocks and top constituents' weightage cannot be more than 20%. The total weightage of top three constituents cannot be more than 45%.

Last month, the market regulator had alleged Jane Street used its trading strategies to "manipulate" Bank Nifty, an index of 12 banking stocks.

The top two constituents of the index are HDFC Bank HDBK.NS and ICICI Bank ICBK.NS, with a weightage of 29.09% and 26.47%, respectively.

In its May circular, the regulator had not clarified whether exchanges had to introduce new indexes and discontinue or restructure existing ones, and asked them to submit revised proposals within 30 days for its approval.

The National Stock Exchange of India (NSE) informed the regulator that market participants had suggested restructuring the existing indexes instead of launching new ones, SEBI said.

This would ensure continuity and avoid disruption in derivative contracts linked to these indices, the regulator added.

BSE BSEL.NS had told the regulator it can achieve the proposed adjustment to its index in one go, SEBI said.

The regulator has invited feedback from the market on its proposals till September 8.

(Reporting by Jayshree P Upadhyay; Editing by Leroy Leo)

((Jayshree.Pyasi@thomsonreuters.com; 9920092491; Reuters Messaging: Twitter: @jaysh88))

Aug 7 (Reuters) - BSE Ltd BSEL.NS:

• JUNE-QUARTER CONSOL NET PROFIT 5.39 BILLION RUPEES

• JUNE-QUARTER CONSOL REVENUE FROM OPERATIONS 9.58 BILLION RUPEES

• APPROVES 550 MILLION RUPEES INFUSION IN INDIA INX

Source text: ID:nNSE1tDmw9

Further company coverage: BSEL.NS

((Reuters.Briefs@thomsonreuters.com;;))

Repeats July 17 story with no changes to text

By Bharath Rajeswaran

July 17 (Reuters) - Trading in India's weekly equity index options has slumped by a third since the country's market regulator banned U.S. high-frequency trading giant Jane Street in the local market earlier this month, exchange data showed on Thursday.

National Stock Exchange of India - the world's largest derivatives exchange by number of contracts traded - saw a nearly 36% drop over two weeks in index options premium turnover, a key measure of real capital deployed and risk appetite.

The options premium turnover stood at 396.26 billion rupees ($4.6 billion) on Thursday, which is the day of weekly options expiry on NSE.

The Securities and Exchange Board of India barred Jane Street on July 4, saying an investigation found it manipulated stock indexes through positions taken in derivatives.

NSE's rival exchange BSE BSEL.NS also saw its options premium turnover drop 36.4% below the July 3 levels. BSE index options expire on Tuesdays.

Emails to NSE and BSE were not immediately answered.

Out of the 10 sessions since the ban, turnover has declined in six on a week-on-week basis across both the exchanges.

"The notable decline in options premium turnover can be attributed to the abrupt withdrawal or reduction of activity by Jane Street, which serves as a primary liquidity provider within the options market," said Osho Krishan, senior analyst of technical and derivatives research at brokerage Angel One.

Unless new market-makers step in or volatility rises materially, turnover is unlikely to bounce back soon, Krishan said.

Traders also point to a broader lull in volatility dragging volumes.

"This isn't just a Jane Street story," said Mayank Bansal, a portfolio manager in India's options market. "It's mostly about volatility — once that comes back, so will the volumes."

The Nifty volatility index .NIFVIX has fallen in nine of the 13 sessions in July so far, and was hovering near a more than one-year low.

($1 = 86.0410 Indian rupees)

(Reporting by Bharath Rajeswaran in Bengaluru; Editing by Ronojoy Mazumdar)

((bharath.rajeswaran@thomsonreuters.com; +91 9769003463;))

By Bharath Rajeswaran

July 17 (Reuters) - Trading in India's weekly equity index options has slumped by a third since the country's market regulator banned U.S. high-frequency trading giant Jane Street in the local market earlier this month, exchange data showed on Thursday.

National Stock Exchange of India - the world's largest derivatives exchange by number of contracts traded - saw a nearly 36% drop over two weeks in index options premium turnover, a key measure of real capital deployed and risk appetite.

The options premium turnover stood at 396.26 billion rupees ($4.6 billion) on Thursday, which is the day of weekly options expiry on NSE.

The Securities and Exchange Board of India barred Jane Street on July 4, saying an investigation found it manipulated stock indexes through positions taken in derivatives.

NSE's rival exchange BSE BSEL.NS also saw its options premium turnover drop 36.4% below the July 3 levels. BSE index options expire on Tuesdays.

Emails to NSE and BSE were not immediately answered.

Out of the 10 sessions since the ban, turnover has declined in six on a week-on-week basis across both the exchanges.

"The notable decline in options premium turnover can be attributed to the abrupt withdrawal or reduction of activity by Jane Street, which serves as a primary liquidity provider within the options market," said Osho Krishan, senior analyst of technical and derivatives research at brokerage Angel One.

Unless new market-makers step in or volatility rises materially, turnover is unlikely to bounce back soon, Krishan said.

Traders also point to a broader lull in volatility dragging volumes.

"This isn't just a Jane Street story," said Mayank Bansal, a portfolio manager in India's options market. "It's mostly about volatility — once that comes back, so will the volumes."

The Nifty volatility index .NIFVIX has fallen in nine of the 13 sessions in July so far, and was hovering near a more than one-year low.

($1 = 86.0410 Indian rupees)

(Reporting by Bharath Rajeswaran in Bengaluru; Editing by Ronojoy Mazumdar)

((bharath.rajeswaran@thomsonreuters.com; +91 9769003463;))

Adds potential timeline for resumption of trading, bourse monitoring and stock market reaction in paragraphs 6-9, 13

By Jayshree P Upadhyay

MUMBAI, July 14 (Reuters) - U.S. high-frequency trading giant Jane Street, which has been accused of market manipulation by Indian authorities, has deposited $567 million in an escrow account so that it can resume trading in the country.

The Securities and Exchange Board of India (SEBI) barred the firm this month from buying and selling securities in the Indian market and put a freeze on $567 million of its funds. Jane Street was only to be allowed to resume trading if an equivalent amount was deposited in an account that gives the regulator rights over the money until its investigation is complete.

SEBI said in a statement on Monday that the money had been transferred and it was examining the company's request that restrictions placed on it be lifted.

"The money has been deposited in good faith. The firm continues to contest the order and will send a formal response rebutting the allegations in coming weeks," said a source with direct knowledge of the matter.

Jane Street did not immediately respond to a Reuters request for comment. It has told its staff it plans to contest SEBI's allegations and that the practices in question were "basic index arbitrage trading".

Even with the ban lifted, the tussle with SEBI is expected to have a huge impact on its business in India, which is the world's biggest derivatives market.

According to a separate source with direct knowledge of the matter, Jane Street does not intend to trade in Indian options while the dispute is unresolved.

Options have been Jane Street's main line of business in India with its exposure to equity derivatives here roughly five to seven times its exposure to regular stocks, said the first source.

SEBI could send instructions to India's exchanges to lift the ban sometime this week, said a third source, adding that the bourses will be directed to monitor Jane Street's trades very closely.

The sources were not authorised to speak to media and declined to be identified.

SEBI has alleged that Jane Street bought large quantities of constituents in India's Bank Nifty .NSEBANK> index in the cash and futures markets to artificially support the index in morning trade, while simultaneously building large short positions in index options which were exercised or allowed to expire later in the day.

The regulator, which tracked Jane Street's trading patterns for more than two years, has also widened its investigation to include other indexes and exchanges, a source has previously said.

Bourse operator BSE BSEL.NS gained 3.2% on Monday on the view that a lifting of the ban could bring more liquidity into the market.

Explosive growth in Indian derivatives trading over the past three years has prompted much consternation among authorities about the fallout for retail investors.

The South Asian country accounted for roughly 60% of the world's equity derivative trading volume in May, and in the past financial year equity derivative losses for India's retail traders widened by 41% to 1.06 trillion rupees ($12.3 billion).

($1 = 85.9640 Indian rupees)

(Reporting by Jayshree Upadhyay in Mumbai; Editing by Edwina Gibbs)

((Hritam.Mukherjee@thomsonreuters.com; X: @MukherjeeHritam;))

June 25 (Reuters) - India's market regulator has directed stock exchanges to monitor whether trading members have implemented "corrective actions", after regulatory inspections found violations, according to a circular issued by BSE BSEL.NS on Wednesday.

Securities and Exchange Board of India (SEBI) conducted joint inspections with the stock exchanges, the circular said, without specifying when the inspections were made or what violations were identified.

However, the circular noted that SEBI will forward these violations to an "Assigned Stock Exchange", which will oversee the timeliness and completeness of corrective measures taken by the trading members.

Trading members, including trading houses and brokerages, have to submit a compliance status report within timelines set by the SEBI, with failure to do so attracting escalating penalties, the circular added.

Continued non-compliance beyond 45 days may result in a complete ban on new client onboarding and the disabling of trading terminals across all segments.

The Assigned Stock Exchange will also verify compliance during subsequent inspections and may take stringent action if discrepancies are found between the compliance reports and findings from internal auditors or exchange inspections, the notice said.

The provisions of the circular will come into effect from July 1, 2025.

(Reporting by Sethuraman NR; Editing by Janane Venkatraman)

((Sethuraman.NR@thomsonreuters.com; (+91 9945291420); Reuters Messaging: nallur.sethuraman.thomsonreuters.com@reuters.net))

Updates sourcing, adds text from exchange filings in paragraphs 1 and 3

By Jayshree P Upadhyay

MUMBAI, June 17 (Reuters) - India's markets regulator has approved requests from the National Stock Exchange of India NSEI.NS and BSE BSEL.NS to move the expiry of equity derivatives contracts to Tuesdays and Thursdays, respectively, the exchanges said separately.

At present, NSE offers weekly and monthly derivatives contracts expiring on Thursdays while BSE offers expiries on Tuesdays.

The weekly contracts are benchmarked against their indexes of top 50 stocks and top 30 stocks, respectively.

Contracts with the new expiry days are applicable from September 1, with those for already introduced contracts remaining unchanged, the exchanges said on Tuesday.

Monthly contracts will now expire on the last Tuesday and Thursday of the month, respectively, for NSE and BSE.

Last month, the Securities and Exchange Board of India said expiry days for all equity derivative contracts would be limited to either Tuesdays or Thursdays to enhance investor protection and market stability.

In October, SEBI reduced the number of weekly options contracts available to investors to one benchmark index per exchange, among other measures, to curb a derivatives trading frenzy.

(Reporting by Jayshree P Upadhyay and Nishit Navin; Editing by Janane Venkatraman, Mrigank Dhaniwala and Tasim Zahid)

Adds comments from sources and BSE

MUMBAI, May 7 (Reuters) - India's top two exchanges, the National Stock Exchange (NSE) and BSE Ltd BSEL.NS, have temporarily restricted access to their websites for overseas users, three sources familiar with the matter said.

This does not impact the ability of overseas investors to trade on the Indian markets, the sources said.

The decision was taken after a joint meeting of exchanges on Tuesday in which cyber threats were discussed, one of the sources said, declining to be identified as the matter is confidential. A BSE spokesperson, when contacted by Reuters, also referred to cyber threats, but did not specify if the exchange had faced one recently.

It comes against the backdrop of an escalating conflict between nuclear armed neighbours India and Pakistan, but sources did not say if the cyber threat was directly linked to recent developments.

Given the sensitivity of the overall environment, some entirely "precautionary" steps have been taken by exchanges, said another of the sources. Indian markets are functioning completely normally, the person said.

"BSE, being a critical market infrastructure institution (MII), proactively and continuously monitors risks at domestic and international levels for potential cyber threats," the BSE spokesperson said in response to an email from Reuters.

"Based on such monitoring of cyber traffic, as a precautionary and protective measure, websites/locations are blocked to protect users and systems," the spokesperson said, adding that access is being permitted on a case-by-case basis.

A spokesperson for NSE did not immediately respond to Reuters' queries.

(Reporting by Ira Dugal and Jayshre P. Upadhyay; Editing by Himani Sarkar and Muralikumar Anantharaman)

((Ira.Dugal@thomsonreuters.com; +91-9833024892;))

April 9 (Reuters) - Kairosoft AI Solutions Ltd KAIR.BO:

• FILES WRIT PETITION AGAINST BSE

Source text: ID:nBSEZnWWL

Further company coverage: KAIR.BO

((Reuters.Briefs@thomsonreuters.com;;))

** BSE BSEL.NS soars as much as 17.8% to 5,519 rupees; set for biggest intraday pct rise in six months

** Securities and Exchange Board on India proposes rejigging the derivatives expiry schedule to either Tuesday or Thursday to ensure optimal spacing for expiry dates

** Analysts at Motilal Oswal say, with BSE contracts expiring before NSE's, rise in trading volumes will help boost bourse's market share

** Aishvarya Dadheech, chief investment officer of Fident Asset Management, says BSE will gain market share in options trading and reach above 25% -30% from Q2 of FY26 if the dates are changed

** Stock rated "buy" on avg, per data compiled by LSEG

** BSEL gains 1.1% so far this month

(Reporting by Ashna Teresa Britto in Bengaluru)

((AshnaTeresa.Britto@thomsonreuters.com ; ( +91 8078332441))

** BSE BSEL.NS rises 4.7% to 4,683.40 rupees

** BSEL's board to meet on Sunday to consider proposal for bonus share issue

** Stock set to snap three-session losing streak

** BSEL down ~12% YTD

(Reporting by Vijay Malkar)

((VijayDattaram.Malkar@thomsonreuters.com;))