Police and additional security forces have been rushed to the spot, the area has been cordoned off.
Police sources say unknown militants lobbed a grenade towards a Central Reserve Police Force vehicle at KP Road in South Kashmir town.
The injured were shifted to district hospital Anantnag. "Most of them have received minor injuries," a hospital official said.
This is the second such attack in the town within a week.
Earlier on July 25, a grenade attack had killed an ice cream vendor and injured five others.
Anantnag is 60 kilometres away from Srinagar.
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