The meeting of state home ministers, which was scheduled for July 3, has been postponed "indefinitely", a home ministry official said.
No reason has been cited for the deferment of the meeting, nor a new date given.
Sources said the reluctance of a few non-Bharatiya Janata Party (BJP) ruled state governments to participate in the meeting could be the reason for the postponement.
The prevailing situation in Jammu and Kashmir, cross- border terrorism, Maoist violence and other issues were expected to be discussed at the meeting.
However, no such conference was held in the last three years.