Indian forces on Monday killed militants including the suspected organizer of a suicide bombing in the occupied Kashmir.
At least 40 paramilitary troops were killed on Thursday in the suicide bomb attack.
It was the deadliest assault on Indian forces in 30 years of insurgency in the Indian-held Kashmir.
Jaish-e-Mohammad (JeM) claimed responsibility for the attack.
Indian Prime Minister Narendra Modi has promised a strong response to the attack.
Modi is under domestic pressure for decisive action against Pakistan as election will be held in May.
The Indian prime minister has given the military a free hand to tackle the cross-border militancy.
Reportedly, the three militants killed in the clash were the members of Jaish-e-Mohammed.