Shiv Sena chief Bal Thackeray dies at 86

Re: Shiv Sena chief Bal Thackeray dies at 86

Story has it that he was bypassed for promotion by a South Indian. That was when he decided to let go of his job and form a movement against South Indians. If my understanding is correct, he had formed an alliance with Muslim League in the late 70s. His hatred for the muslims came later.