Militants hurled a grenade at a party of security force personnel at around 5.30 pm in Pohu area wounding six, police said.
The injured included four CPRF personnel, a policeman and a civilian, they said.
The militants escaped from the secene taking advantage of the panic caused by the blast.
No militant outfit has claimed responsibility for the attack so far.
Pulwama is going to polls in the third phase of voting on December 9.