Dear Poornima,
I would like to add here that you have mentioned your point with reference to Partial Reverse Charge Mechanism as per Notification No. 30/2012-ST dated 20-06-2012 which is correct for Renting of Motor Vehicle since Assessee is not a Body Corporate & hence service receiver is not liable to service tax. However as per rule 2(1)(d) of Service Tax Rules, 1994, in case of GTA, if the person liable to freight is registered society than yes service receiver would be liable to pay service tax & if society is liable to pay freight than in such case service provider i.e. GTA would be liable to pay service tax.