The first tunnel close-pit mining in Rajasthan started here in Kayar area to produce zinc and allied minerals, including silver and lead, will bring pump in Rs 1 crore every month initially as royalty to government's coffers.

The first production of mineral from the Kayar mine was sent to a refinery in Rampura Agucha of Bhilwara district. Kayar has the third largest zinc deposit in Asia with an expected 35,000 metric tonnes of the mineral.