India, Jan. 21 -- Investors' wealth eroded by INR 9.86 lakh crore in a single day on Tuesday as stock markets faced heavy drubbing, with the BSE Sensex tumbling 1,066 points, amid escalating geopolitical tensions and unabated foreign fund outflows.

Extending its previous day's decline, the 30-share BSE Sensex tumbled 1,065.71 points or 1.28 per cent to settle at 82,180.47. During the day, it dropped 1,235.6 points or 1.48 per cent to 82,010.58.The market capitalisation of BSE-listed firms eroded by INR 9,86,093.96 crore to INR 4,55,82,683.29 crore ($5.01 trillion), mirroring a bearish trend in equities.

From the 30-Sensex firms, Eternal declined by 4.02 per cent, followed by Bajaj Finance (3.88 per cent), Sun Pharma, InterGlobe Aviation...