Benchmark indices closed with gains on Thursday in a highly volatile trade. The 30-share Sensex rebounded 195 points to settle at 72,500 and the broader Nifty gained 31 points to close at 21,982. Stocks that were in focus included names like Infosys, which rose 0.16%, Shriram Finance, which jumped 3.8%, and Hindustan Copper, whose shares increased 6.44% on Thursday.