KATHMANDU: Nepal’s top court ousted the sitting prime minister and reinstated the dissolved parliament Monday, plunging the Himalayan nation into further political uncertainty.

The country has been in a political crisis for months amid infighting between Prime Minister K.P. Sharma Oli and senior leaders of his party.

“The dissolved parliament will be reinstated,” the court wrote in its judgement.

Oli first moved to dismiss parliament in December, but it was reinstated by the Supreme Court, which called his move unconstitutional.

The 69-year-old then lost a vote of confidence in the lower house of parliament.

But he was reinstated as PM after the main opposition parties were unable to obtain a majority of support in the bicameral parliament.

Oli tried again to dissolve parliament in May, but his decision was challenged by lawmakers and political activists in the top court.

The court said in its judgement that the main opposition leader Sher Bahadur Deuba should replace Oli by late Tuesday, as he had presented “a claim (of majority)... as the prime minister”.

Deuba has to win a vote of confidence in the lower house within a month to retain the prime ministership.

Deuba, the head of the Nepali Congress, earlier claimed to have the support of 149 members of the 275-seat lower house.