Regaining the 75,000 level, the 30-share BSE Sensex jumped 692.27 points or 0.93 per cent to settle at 75,074.51.

During the day, it soared 915.49 points or 1.23 per cent to 75,297.73.

The NSE Nifty climbed 201.05 points or 0.89 per cent to 22,821.40.

Intra-day, it rallied 289.8 points or 1.28 per cent to 22,910.15.

Among the 30 Sensex companies, Tech Mahindra, HCL Technologies, State Bank of India, NTPC, Infosys, Larsen & Toubro, Tata Consultancy Services and Wipro emerged as the biggest gainers.

Hindustan Unilever, Asian Paints, Mahindra & Mahindra, Nestle, IndusInd Bank and Sun Pharma were among the laggards.

Prime Minister Narendra Modi is poised to form the government at the Centre for a third consecutive term after the BJP-led National Democratic Alliance (NDA) won the majority in the just-concluded parliamentary polls.

In Asian markets, Tokyo and Hong Kong settled with gains while Shanghai ended lower.

Global oil benchmark Brent crude climbed 0.09 per cent to $78.43 a barrel.

Foreign Institutional Investors (FIIs) offloaded equities worth Rs 5,656.26 crore on Wednesday, according to exchange data.