Indian Prime Minister Narendra Modi’s Hindu nationalist party won elections in the sprawling megacity of Delhi for the first time in 27 years on Saturday, defeating one of his most prominent critics in a much-needed boost after losing its national majority last year.

Control of the assembly in New Delhi is set to change hands, a feat that eluded the Indian prime minister’s Bharatiya Janata Party for nearly three decades.

The BJP won 48 of the 70 seats in the capital district, well ahead of the 22 for the Aam Aadmi Party of Arvind Kejriwal, a fierce critic of Modi, Election Commission data showed.

Thousands are voting in the Indian capital’s state legislature election, with Prime Minister Narendra Modi’s Hindu nationalist party trying to unseat a powerful regional group that has ruled New Delhi

Modi’s Bharatiya Janata Party won 47 seats in the 70-member assembly that includes India’s capital of 20 million people, ousting the Aam Aadmi Party, or AAP, that ruled New Delhi since 2015. The AAP won 22 seats.