The provocative action by Pakistan, to which Indian troops retaliated effectively, came a day ahead of the visit of Defence Minister Arun Jaitley to the state for the first time after taking over.
Jammu and Kashmir Chief Minister Omar Abdullah questioned the timing of the ceasefire violation.
"Is it just a coincidence that the Defence Minister is visiting J&K, for his 1st visit, to review the security situation tomorrow?" Omar tweeted.
No casualty or damage has been reported on this side of the LoC due to the firing, he said.
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Indian troops guarding the border effectively replied with similar calibre weapons, he said, adding that the "exchanges occurred in three forward areas".
In the wake of the incident, fourth since Narendra Modi government took over, India reminded Pakistan that maintenance of peace and tranquility on the border is a "pre-condition" for having a normal relationship between the two countries.
"On firing, I will like to reiterate that peace and tranquility on the border is of the highest importance in establishing the pre-condition for such peaceful and normal relationship," she told reporters.
"Maintenance of peace and tranquility on LoC is one of the most important CBMs between India and Pakistan. That remains and will remain the case," she said.