Stock market holiday next week: Dussehra and Diwali celebrations seem to have arrived early on Dalal Street as Nifty and Sensex clocked their biggest weekly gains since April. The rally comes ahead of a shortened trading week as Indian stock markets are set to remain closed on Dussehra holiday next week.For investors and traders planning their strategy next week, here are all the details to know about the upcoming stock market holiday next week.Stock market holiday on Dussehra: Will NSE, BSE remain shut on October 20?Nifty and Sensex trading will remain shut for one day next week due to Dussehra celebration.