By contacting first Camac Harps in France, and then other large harp makers, (Horngacher, David, Pilgrim, etc.) you ,may find one that has sold a harp in or near the area in India where you will play, and let you make contact for a one-day rental possibility from the owner. If this does not yield a result, see if a single-action lever harp made by Mr. Arsalaan Fay in Florida USA might suit your needs for wedding repertoire. It is 33 strings , has 4 detachable legs, and 7 levers each of which change by a semitone all strings of the same name, just like the Tyrolean single-action pedal harps in Europe. Mr. Fay is at dharps@juno.com. An investment in such a greatly portable yet harmonically superior (to ordinary lever harps) instrument may be to your great advantage over the years, as I have found with mine., leading to more performing opportunities than before ownership.