Please involve some local acquaintance to be your witness and resolve it locally with the shopkeeper, so that shopkeeper gets you a replacement. If your business partners/associates are influential and are willing they can help you. Try and see if you can record your representation to the shopkeeper. If the shopkeeper has admitted the lapse, he can come forward to settle the matter amicably.
File a complaint before consumer forum and claim the price of damaged cloths and compensation towards mental agony and harrasment.You need not to attend forum on each and every hearing date since the trial lof consumer cases are in summary nature so your presence is not required.