A cabinet chaired by chief minister Ashok Gehlot met on Saturday night decided that a curfew will be clamped from 8 pm to 6 am in Jaipur, Jodhpur, Kota, Bikaner, Udaipur, Ajmer, Alwar and Bhilwara. The state also increased the fine amount on not wearing a face mask from Rs 200 to Rs 500, an official release said.