New Delhi, June 19 -- Indian stock market benchmarks, the Sensex and the Nifty 50, ended marginally lower, while the mid-cap and small-cap segments suffered deep losses on Thursday, June 19, as escalating tensions between Israel and Iran kept sentiment fragile.

The Sensex ended 83 points, or 0.10 per cent, lower at 81,361.87, while the Nifty 50 settled 19 points, or 0.08 per cent, down at 24,793.25.

On the other hand, the BSE Midcap index plunged 1.64 per cent and the Smallcap index crashed 1.77 per cent.

The overall market capitalisation of BSE-listed firms dropped to nearly Rs.442.5 lakh crore from Rs.446.3 lakh crore in the previous session, making investors poorer by about Rs.4 lakh crore in a single day.

Market sentiment remained...