Police have fired shots into the air to disperse Hindu and Muslim mobs in western Gujarat after the governing Hindu-nationalist party was returned to power.
Three people have been seriously injured in violent clashes in Vadodara.
The skirmishes began as Hindus celebrated their victory in last week's state elections.
Police say a group of Hindus attacked a mosque in Yakubpura, which led to a retaliatory attacks by Muslims.
Sixteen people have been detained for rioting.
Officers first tried to scatter the rampaging mobs with bamboo truncheons, but later fired several rounds in the air to restore order, said DD Tuteja, Vadodara commissioner of police.
Four other people who received minor injures were discharged from the hospital after treatment.