No priest was present on the temple's premises when the theft took place, Amarsar Police SHO Ramroop Meena said.
Three ancient ashtadhatu (eight-metal) idols of god Narsingh, six silver "chhatra" (umbrellas), some jewellery was stolen, he said.
Irate villagers held a demonstration outside the temple demanding arrest of the culprits, he said.
A case has been registered and police have begun search operation after alerting all check posts to nab the thieves, he said.