Mumbai, Apr 25: The Bombay Stock Exchange benchmark Sensex on Friday regained the sweet 17K level after almost two months by adding 405 points after discarding concerns over souring inflation, with heavyweight stocks in metal, banking and refinery counters attracting buying support.

The 30-share index of Bombay Stock Exchange ended the day at 17,125.98, a rise of 404.90 points, or 2.42 per cent, over its previous close.

The broader 50-share S&P CNX Nifty on the National Stock Exchange also advanced by 111.85 points, or 2.24 per cent, to close at 5,111.70.

Brokers said the markets awaiting a trigger after trading range-bound in the past few sessions spurted after the Bharti Airtel, the country's biggest cellular services provider, announced a better-than-expected fourth quarter earnings.

Index-related stock Bharti Airtel topped the pack of gainers at 9.61 per cent, as it posted a 37 per cent growth at Rs 1,853 crore in net profit for the quarter ended March 31.