India's polarities killed both protagonists: the Mahatma was shot by a Hindu fanatic enraged by his solicitude towards Muslims, Indira by her Sikh bodyguards, provoked by an attack she authorised on Punjabi separatists who had seized Sikhism's holiest site.
Just to make it really easy let's suppose she begins telling people that she is enraged because the spirit of Jesus when he threw the money changers out of the temple has entered her body and now controls her.