New Delhi, Oct. 9 -- The Indian stock market ended with healthy gains on Thursday, October 9, on buying activity across sectors ahead of the start of the September quarter earnings season. IT heavyweight TCS will report its Q2 earnings on Thursday.

The Sensex ended 398 points, or 0.49 per cent, higher at 82,172.10, while the Nifty 50 settled with a gain of 136 points, or 0.54 per cent, at 25,181.80. The BSE Midcap and Smallcap indices ended with gains of 0.75 per cent and 0.18 per cent, respectively.

Investors earned more than Rs.2 lakh crore in a single session as the cumulative market capitalisation of BSE-listed firms rose to over Rs.460 lakh crore from about Rs.458 lakh crore in the previous session.

The Indian stock market rose on...