Hard-line Hindus are warning couples not to take foreign celebrations of Valentine's day too seriously because it corrupts traditional values.
Various Hindu nationalist groups warned people to stay indoors Tuesday, saying they would confront young couples showing affection in public and variously threatened to beat them, show their pictures to parents or force them to get married.
In the past, Hindu nationalists have accosted young couples and vandalized shops selling Valentine's Day cards and gifts.
Police say Muslim groups also have objected to the growing popularity of Valentine's Day. Last week, more than 20 black-veiled Muslim women stormed gift and stationery shops in Indian Kashmir, burning Valentine's Day cards to protest what they called the imposition of Western values on Muslim youth.