India, Aug. 15 -- Raj Kumar Chawla was just eight, a Class 4 student, when Partition upended his world. Of his lost home in Kasur Tehsil, now in Pakistan's Lahore, three images remain etched in his mind: the name "Raj Kumar Building" engraved in Urdu in a circular design on the main gate of their new house; a secret iron cash box hidden in the wall; and the ritual of dropping into it a silver coin his father gave him each night. "The memories are few but vivid. I still remember the nameplate so clearly I could draw it even today. That cash box held my first savings - coins I'll never get back," says Chawla, now 86, who lives in Noida and runs a transformer manufacturing company. On August 10, 1947, the family left for Haridwar after Muslim ...