Mahinda Rajapaksa, leader of Sri Lanka Podujana Peramuna party, took oath as the nation's prime minister for the fourth time on Sunday after his party secured a landslide victory in the recently concluded parliamentary election.

Rajapaksa took oath during a grand ceremony at Kelaniya Temple, a Buddhist temple on the outskirts of Sri Lanka's capital Colombo in the presence of the diplomatic community and legislators from the ruling and opposition parties, Xinhua news agency reported.

Rajapaksa's party won 145 seats in the August 5 election which was held to elect new legislators in a 225-member parliament.

His new cabinet will take oath later this week.

According to the Elections Commission, the parliamentary election held last Wednesday was one of the most peaceful held in Sri Lankan history with a 71 per cent voter turnout.

The election was held under strict health guidelines due to COVID-19 pandemic which has infected over 2,800 people in the country.

According to Sri Lankan President Gotabaya Rajapaksa, the new parliament will convene on August 20.  (IANS)