Constable Altaf was shot at from close range by the militants at Goriwan chowk in Anantnag town, 55 km from here, this evening, they said.
The cop was hit by a bullet in the chest and has been referred to a hospital here in a critical condition, they said, adding that no militant outfit has so far claimed responsibility for the attack.
A hunt has been launched to nab the attackers, police said.