Foreign exchange reserves dipped marginally by $237.5 million to $355.221 billion in the week to June 26.
Tata Steel was the top loser in the Sensex pack, shedding over 4 per cent, followed by Bharti Airtel, Axis Bank, ONGC, SBI and Sun Pharma.
Bajaj Finserv was the top gainer in the Sensex pack, rising around 4 per cent, followed by Bajaj Finance, ICICI Bank, IndusInd Bank, Tata Steel, Axis Bank, HDFC and SBI. NSE Nifty rose 36.55 points or 0.31 per cent to 11,971.05.