A grenade that exploded at a crowded market in Kashmir killed a shopkeeper, and security forces have also shot dead several suspected militants.
The violence comes a day after a ceasefire between Indian and Pakistani soldiers went into effect along their border.
Police say militants hurled a grenade at a security checkpoint at Lal Chowk, the commercial hub of Srinagar in Kashmir, but it missed its target and hit a shop. The owner was killed and nine passers-by were injured.
No one has claimed responsibility for the attack, which police blamed on separatist rebels fighting for Kashmir's independence.
Earlier today, four suspected rebels were killed in a pre-dawn gun battle in Nowgam - a frontier village 60 miles north of Srinagar. In nearby Hundwara, a police officer was also shot dead by unidentified gunmen.
In a separate incident, four militants were killed after a gunfight broke out when a joint patrol of police and Indian army spotted a group of guerrillas in a remote mountainous area of Udhampur district.
The killings came a day after a ceasefire between the armies of India and Pakistan - both of which claim the Himalayan Kashmir region in its entirety - went into effect. Police say the 700-mile Line of Control, which divides Kashmir between India and Pakistan, remained calm.
India said that despite the accord, it would continue to hunt down suspected militants crossing into Indian Kashmir from Pakistani territory.
PA