NEW DELHI (Reuters)

Narendra Modi was sworn in as India's prime minister on Sunday for a record-equalling third term.

President Droupadi Murmu administered the oath of office to Modi at a grand ceremony at the Rashtrapati Bhavan, the president's palace in New Delhi, attended by thousands of dignitaries, including the leaders of seven regional countries, Bollywood stars and industrialists.

Modi is only the second person after independence leader Jawaharlal Nehru to serve a third straight term as prime minister.

Modi, 73, secured the third term in elections that concluded on June 1 with the support of 14 regional parties in his BJP-led National Democratic Alliance (NDA).

"We have won the majority ... but to run the country it is unanimity that is crucial ... we will strive for unanimity," he said on Friday after the NDA formally named him coalition head.