“He who lives by other people’s WhatsApp chats shall be judged by his own WhatsApp chats.”—old jungle saying *** For weeks, after the death of Sushant Singh Rajput, India’s TV news channels feasted on crumbs fed to them—leaked transcripts of WhatsApp conversations of stars and upstarts, hinting darkly at murder, extortion, drugs and sex, all in the run-up to the assembly elections due in…