Bombay Stock Exchange Today: Sensex at 84,929, Major BSE Index Rejig on Dec 22, and What to Watch in the Christmas Week (21 December 2025)

Mumbai | 21 December 2025 — The Bombay Stock Exchange heads into a holiday-thinned, event-heavy week with a familiar cocktail: a late rebound in benchmarks, a looming BSE index reshuffle that can force passive-fund flows, and a fresh exchange-level proposal aimed at curbing “too many orders, not enough trades” behavior in the cash market.