A firming trend in most of Asia, tracking overnight gains in the US after the Federal Reserve kept its benchmark interest rate unchanged, gave buying in domestic markets a leg-up, traders said.
Taking note of improvement in the labour market, the US central bank cited slower economic growth for its policy move while signalling faith in outlook of the economy.
In a related development, the Bank of Japan too kept rates steady.
That apart, better-than-estimated earnings by some companies came as a positive for sentiment.
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The NSE Nifty rose 10.30 points, or 0.12 per cent, to 7,990.20 in early trade.
Short-covering by participants with today being the last trading session of April series contracts in the derivatives segment supported the upmove.
Telecom major Bharti Airtel surged 2.26 per cent to Rs 3,481.60 after the company yesterday reported a 2.8 per cent jump in net profit at Rs 1,290 crore for the fourth quarter to March 2016.
The US Dow Jones Industrial Average ended 0.28 per cent higher yesterday.