Here’s a saccharine, smile-through-your-tears feelgood weepie from India, partly shot in London and quirkily narrated from the grave. It’s inspired by the life of an Indian teenager, Aisha Chaudhary, born with a rare immune deficiency disorder, and is a film that doesn’t invite you to shed a tear so much as hold a bucket full of chopped onions under your face until you can’t take it any more. I...