Total of 68 people died in different lightning incidents across Uttar Pradesh, Madhya Pradesh and Rajasthan on Sunday.
While the death toll due to heavy lightning in Uttar Pradesh mounted to 41 on Monday, seven people were reported to be dead in Madhya Pradesh.
In Rajasthan, 22 people died in lightning at different places on Sunday.
11 people died and more than a dozen injured when lightning struck a watch tower at Amer Fort near Jaipur.
Several people from nearby locations had reached over the mountain near Amber fort to enjoy picnic.
The accident took place when some people had climbed over a watch tower to click selfies amid rain, when the lightning struck the tower. SDRF and police teams have rescued around 29 people.
PM expresses grief on loss of lives due to lightning in Rajasthan
Prime Minister Narendra Modi has expressed grief on loss of lives due to lightning in some areas of Rajasthan.
In a tweet, Mr Modi expressed condolences to the families of the deceased