India, Sept. 28 -- Benchmark equity indices Sensex and Nifty have shed more than 5 per cent over the past month, eroding investor wealth by Rs 17.17 lakh crore as surging crude oil prices, geopolitical tensions and elevated bond yields weighed on market sentiment.

The 30-share BSE Sensex has declined 4,161.87 points, or 5.40 per cent, since August 27, while the 50-share NSE Nifty has fallen 1,310.6 points, or 5.44 per cent.

Investor wealth declined by Rs 17,17,487.02 crore during the period to Rs 4,74,36,620.19 crore, equivalent to about USD 4.94 trillion.

The sell-off intensified on Monday, with the Sensex plunging 1,124.02 points, or 1.52 per cent, to close at 72,771.72, its lowest level since March 30. The Nifty dropped 360.25 point...