Dear Sir,
Since the supplier of GTA services and recipient both are located in India, PoS has to be decided as per section 12 of IGST Act and not as per section 13.
Relevant provision will be section 12 (8) of IGST Act and PoS will be destination of goods (Nepal)
Place of supply of services where location of supplier and recipient is in India
(8) The place of supply of services by way of transportation of goods, including by mail or courier to,––
(a) a registered person, shall be the location of such person;
(b) a person other than a registered person, shall be the location at which such goods are handed over for their transportation.
1[Provided that where the transportation of goods is to a place outside India, the place of supply shall be the place of destination of such goods.]
Further if we see section 7(5) of the IGST Act, this transaction will be consider as inter state supply.
5) Supply of goods or services or both,––
(a) when the supplier is located in India and the place of supply is outside India;
shall be treated to be a supply of goods or services or both in the course of inter-State trade or commerce.
Thereby the said transaction will be an inter state supply and RCM liability will attract as there is no specific exemption provide for the said transaction.
One more issue may arise is once we pay tax IGST (PoS as other territory) under RCM, credit of the same may not be eligible as IGST (PoS as Haryan) will only be an eligible credit.
Request experts to share their view on liability, PoS and ITC as this is peculinear transaction.