Sudheendra Kulkarni, a key aide of senior Bharatiya Janata Party (BJP) leader L.K. Advani and previously of former prime minister Atal Bihari Vajpayee, has ended his association with the party over "ideological differences."

He, however, maintained that his decision had nothing to do with the expulsion of Jaswant Singh over his book "Jinnah: India, Partition, Independence".