Pakistan Army initiated unprovoked and indiscriminate firing of small arms, automatics and mortars from 1030 hours in Sunderbani sector along LoC in Rajouri district, a defence spokesman said.
He said the Indian Army effectively retaliated.
Pakistani troops also violated the ceasefire in Keri and Khour areas of Akhnoor sector of Jammu district, official sources said.
There was a brief lull in firing and shelling by Pakistan troops along the LoC in the past two days.
Ceasefire violations along the LoC and the International Border (IB) in Jammu and Kashmir have left 21 people, including 12 security personnel, dead and more than 80 others, mostly civilians, injured this year.