The Bombay Stock Exchange (BSE) has announced a significant reshuffle in its key indices, with two high-profile newly listed companies set for promotion. The parent company of online brokerage platform Groww, Billionbrains Garage Ventures Ltd, and online eyewear retailer Lenskart Solutions Ltd will be included in the prestigious BSE Large Cap index.
Official Announcement and Effective Date
According to an official notification released by BSE Index Services Private Ltd on Tuesday, 23 December 2025, the changes will take effect from the market open on Tuesday, 6 January 2026. The reconstitution is a result of a periodic review as per the methodology notice 20251029-21. This move signals the growing stature and market acceptance of these consumer-focused digital giants in the Indian equity landscape.
Detailed Index Inclusions
The index reconstitution involves multiple benchmarks. Tata Motors Ltd has been added to the BSE Allcap, BSE Large Cap, BSE Large Mid Cap, and BSE Industrials indices.
Billionbrains Garage Ventures Ltd, which operates Groww, will join the BSE Allcap, BSE Large Cap, BSE Large Mid Cap, and the BSE Financial Services indices. This inclusion highlights the platform's dominant position in the online brokerage and financial services space.
Meanwhile, Lenskart Solutions Ltd will be added to the BSE Allcap, BSE Large Cap, BSE Large Mid Cap, and the BSE Consumer Discretionary indices. This reflects the company's strong footprint in the retail and consumer discretionary spending sector.
Stock Performance and Market Reception
Despite the positive news, shares of Billionbrains Garage Ventures (Groww) closed 3.26% lower at ₹160.30 on Tuesday, 23 December 2025, compared to the previous close of ₹165.70. However, the stock has delivered robust returns since its listing in November 2025, giving investors over 8% gains. The share price has risen 6.03% in the past month and surged 12.41% in the last five trading sessions. The company's 52-week high is ₹193.91 (18 November 2025), and the low is ₹112.02 (12 November 2025). Its market capitalisation stood at a formidable ₹98,962.75 crore as of the latest close.
Lenskart Solutions shares saw a marginal dip of 0.12%, closing at ₹465.70 on the same day. Its performance since listing has been even more impressive, offering investors returns exceeding 14%. The stock has jumped 12.57% in one month and 15.01% in the last five sessions. Notably, Lenskart hit its all-time high of ₹495 on 22 December 2025. The company commanded a market cap of ₹80,792.90 crore at the end of trading on 23 December 2025.
The inclusion in major indices like the BSE Large Cap typically leads to increased visibility among institutional investors and can trigger passive fund inflows from index-tracking funds and ETFs. This development marks a milestone for Groww and Lenskart, affirming their transition from dynamic startups to established large-cap entities in the Indian stock market.
