The Sensex regained the 25,000 mark by soaring 344 points in opening trade on Monday on increased buying by foreign funds and retail investors ahead of swearing-in of Narendra Modi as the 15th Prime Minister of India.

Rising for the third straight session, the 30-share Sensex shot up by 344.19 points, or 1.39 percent, to trade at 25,037.54 with all the sectoral indices, led by power, PSUs, capital goods, auto, realty and banking sectors, trading in positive zone and rising up to 2.13 percent.

The gauge, which earlier breached the 25,000 mark on May 16, had climbed 395.33 points in the past two sessions. On similar lines, the 50-share NSE Nifty reclaimed the 7,400-level by spurting 90.35 points, or 1.22 percent, to trade at 7,457.45.

Brokers said persistent inflow of foreign funds on hopes that the new government led by Narendra Modi would take a series of measures to revive the country’s economic growth and a firming trend in the global markets buoyed the trading sentiments.