Stock exchanges BSE and NSE will hold special Muhurat Trading session today between 6:15 pm and 7:15 pm on the occasion of Diwali. The pre-market segment will start from 6 pm. The session marks the beginning of a new Hindu calendar year, Samvat 2080. Last year, Sensex and Nifty indices rose by 0.88% during the Muhurat Trading session.