While 10 were killed and six injured in Burdwan, two died in Malda due to lightning, they said.
In Burdwan, the deceased include one 15-year-old boy, a septuagenarian, a 22-year-old youth and seven people aged between 35 and 43, SP S M H Mirza said, adding that the six injured have been admitted to hospital.
Burdwan District Magistrate O S Meena announced Rs two lakh ex-gratia each for the families of the victims.
At Habibpur area in Malda district, a 60-year-old woman and her 10-year-old grand daughter were killed when lightning struck them while they were enjoying the rain outside their house.