On Friday, in the largest of the seven phases, 166 million voters in 102 constituencies across 21 states and territories will vote
The exchange of fire took place in the Bhimber, Hot Spring, Kel and Lipa sectors, and lasted about six hours early on Thursday, the Pakistani military's press wing said in a statement.
An Indian army spokesperson confirmed that there had been shelling from the Pakistani side of the de facto border into the Poonch district of Indian-administered Kashmir.
Both India and Pakistan claim the disputed region of Kashmir in full, but govern over separate parts of it, divided by the Line of Control, a heavily militarised de facto border.