Indian police and troops have killed three suspected separatists in two separate gun battles in India-held Kashmir (IHK) on Tuesday, one of them near the de facto border with Pakistan, officers claimed.

Soldiers and members of the police's special operations group surrounded Hadoora, some 25 kilometres north of the main city of Srinagar, after a tip-off about suspected separatists inside a house in the village.

“In the ensuing gunfight two militants were killed. Both are foreigners," claimed police Superintendent Imtiyaz Ismael while talking with AFP.

In a separate incident a group of separatists reportedly attempted to cross the Line of Control (LoC) that divides Kashmir between India and Pakistan in the Sundabani sector, but were intercepted by Indian soldiers.

“One terrorist was eliminated in the operation while the others fled towards Pakistan's portion of Kashmir,” an army statement claimed.

Several separatist groups have spent decades fighting Indian forces deployed in the disputed territory, demanding independence or a merger with Pakistan which also claims the Himalayan region in its entirety.

Tens of thousands, mostly civilians, have died in the fighting.

Dozens of local youths joined the separatist ranks following the killing of a popular separatists leader Burhan Muzzafar Wani by Indian forces in July last year. The incident sparked months of anti-India unrest which left more than 90 civilians dead.

Clashes between the separatists and government forces have grown more frequent since then.