"Though everything is now normal within NDA but we should be prepares to face any if and buts in future," he said.
Nitish made this appeal to party workers while addressing the JD-U trader cell at the convention hall at Rajgir.
Relations between NDA partner JD-U and BJP deteriorated recently after leaders in JD-U conclave made strong remarks on Narendera Modi, considered as prime ministerial candidate of the party.
After bickering between leaders of the two parties, relations improved between the old partners by reaching seat-sharing agreement for elections to three seats of Bihar legislative council.
Seeking to put a full stop on the controversy, Kumar has said we are working with close co-ordination for the welfare of the people and would continue to do so in future.