The Sensex crossed the 50,000 mark for the first time ever in the pre-opening session on Thursday. The equity benchmarks galloped to lifetime highs on Thursday, in lockstep with global markets which surged after Joe Biden was sworn in as US President. 

Among Sensex stocks, Bajaj Finance and Bajaj Finserv rose the most by 3.15%, followed by HCL Technology, Indusind Bank and Reliance.

On Wednesday, markets had closed on a positive note with Benchmark indices hitting record highs pushed by IT and auto stocks. Global cues helped push indices, which closed in the green for the second day in a row. Sensex closed with 394 points at 49,792, while Nifty closing 0.9% higher at 14,645.

Asian markets welcomed Joe Biden's first day as US president with broad gains Thursday as investors look forward with optimism about his economic and COVID recovery plans.

Soon after being sworn in Biden signed more than a dozen executive orders unwinding some of his predecessor's policies, including rejoining the World Health Organization that observers say will help in the fight against the devastating disease.

US equities finished at record highs on Wednesday after Joe Biden was sworn in as the President of the United States and he vowed to take all necessary measures to bring back the US economy on track.

Elsewhere in Asia, bourses in Shanghai, Hong Kong, Seoul and Tokyo were trading with significant gains in mid-session deals.

Meanwhile, the global oil benchmark Brent crude was trading 0.30 per cent higher at USD 55.91 per barrel.