Zohra Sehgal last appeared on screen in 2007's Saawariya, aged 90 plus. (File photo)In the unforgiving world of showbiz, where shelf lives are notoriously tiny, actress and dancer Zohra Sehgal's career flourished for several decades.Born Sahibzadi Zohra Begum Mumtaz-ullah Khan on April 27, 1912, Ms Sehgal was one of seven children and grew up near Dehradun. She was sent to Lahore's Queen Mary College and, after graduating, picked career over marriage.And so began a story more remarkable than any