New Delhi, May 10 -- The combined market valuation of four of the top-10 most valued firms eroded by Rs.1 lakh crore last week, with State Bank of India taking the biggest hit, amid a range-bound trend in equities.

Last week, the BSE benchmark Sensex climbed 414.69 points or 0.53 per cent, and the NSE Nifty went up by 178.6 points or 0.74 per cent.

"Indian equity markets witnessed a volatile and range-bound week, with sentiment remaining cautious despite intermittent recovery attempts. Early optimism driven by hopes of de-escalation in the Middle East and easing oil prices faded quickly as renewed tensions between the US and Iran resurfaced," Ponmudi R, CEO - Enrich Money, an online trading and wealth tech firm, said.

While Bharti Airt...