SRINAGAR: Indian forces have killed the leader of an al Qaeda affiliated militant group in Kashmir, police said on Friday, triggering protests in parts of the disputed region.

Zakir Rashid Bhat, 25, was trapped by security forces in a three-storey house in southern Kashmir late on Thursday, said a senior police officer, adding that the house was set ablaze during the operation.

"As we were clearing debris from the house, he tried to get up. Our troops fired at him and he was killed," said the officer, who declined to be named because he was not authorised to speak to media.

For decades, separatists have fought an armed conflict against Indian rule in Kashmir, with the majority of them wanting independence for the Himalayan region, or to join New Delhi's arch rival Pakistan.

India has stepped up an offensive against militants in the Muslim-majority region since a suicide attack in February killed 40 Indian troopers in Kashmir and brought India and Pakistan to the brink of war.

Pakistan denies giving material support to militants in Kashmir but says it provides moral and diplomatic backing for the self-determination of Kashmiri people.

Protests by supporters of Bhat broke out in parts of Kashmir on Thursday and there were reports of demonstrations early on Friday, the police officer said.

Fearing more unrest, authorities said schools were closed and railway services suspended in the affected areas.

Any large scale unrest in the region would be a challenge for Indian Prime Minister Narendra Modi as he prepares for a second term after winning a general election on Thursday.

Bhat, a former commander of the Hizbul Mujahideen, the largest of the militant groups fighting against Indian rule in Kashmir, founded his own group and declared its association with al Qaeda in 2017.

Also known as Zakir Musa, he was seen as a successor to Burhan Wani, a popular Hizbul Mujahideen commander whose death in 2016 sparked clashes that left 90 civilians dead.