Thane city police on late Wednesday night registered a First Information Report (FIR) for defamation against Shiv Sena (UBT) leader Sanjay Raut for his claim that there was a threat to his life from Maharashtra Chief Minister Eknath Shinde's son Shrikant Shinde.

A case was registered under IPC sections 153 (A) (promoting disharmony between different groups, religions, etc), 500 (defamation) and other relevant sections at Kapurbawdi police station, said an official.