The benchmark indices bounced back from the morning's low to breaks a four-day losing streak in yet another volatile session on April 19, helped by gains in banking and metal names.

At close, the Sensex was up 599.34 points, or 0.83 percent, at 73,088.33, and the Nifty was up 151.20 points or 0.69 percent at 22,147.

The market opened lower on reports of Israel's retaliatory missile strike on Iran and traded lower in the first half but turned around in the afternoon session, erasing the day's losses to end near the day’s high.

But, for the week, the Sensex and the Nifty50 were fell 1.5 percent each.

Bajaj Finance, M&M, HDFC Bank, Maruti Suzuki and JSW Steel were among the top gainers on the Nifty, while losers were Bajaj Auto, HCL Technologies, Divis Labs, TCS and Nestle India.

On the sectoral front, bank and metal indices were up a percent each, and the FMCG index was up 0.5 percent. Healthcare, IT, power and realty were down 0.3-0.6 percent.

The BSE midcap index was down 0.4 percent and the smallcap index flat.

Among individual stocks, a volume spike of more than 100 percent was seen in L&T Finance Holdings, Nalco and Atul.

A long build-up was seen in RBL Bank, Escorts and HDFC Bank, while a short build-up was seen in Tata Communications, Lupin and ICICI Prudential Life Insurance Company.

More than 150 stocks touched their 52-week high on the BSE, including Avenue Supermarts, Bharti Airtel, Elecon Engineering, Force Motors, Indus Towers, JSW Energy, Just Dial, KSB Pumps, Linde India, Motilal Oswal, Repco Home, Savita Oil Technologies, Shakti Pumps, Thermax, among others.