Tracing a route through the folds of the eastern Himalayas, Motilall Lakhotia is explaining how Indian trade caravans used to ply the scenic Chumbi valley into Tibet.”It was a big trade even then. The Tibetans sold us Indians silver, raw wool and Chinese silk. We had manufactured goods and cotton. Especially blue cotton, because that is what everyone wore those days. You remember … they called them Mao suits,” says the dapper Mr Lakhotia.