Vish Puri is as fond of butter chicken as the next Punjabi. So when it’s served at the Delhi Durbar hotel at an India Premier League cricket match dinner, he’s the first to tuck in. Faheem Khan, father of Pakistani star cricketer Kamran Khan, can’t resist either. But the creamy dish proves his undoing. After a few mouthfuls, he collapses on the floor, dead...