Hi pinkuvs1
"How to use "paisapay'" on international "ebay sites" from ebay.in platform."
As I understand your question the buyer can pay through PaisaPay on any eBay site where the seller is offering the PaisaPay as payment option.
Sellers registered in India can offer PaisaPay Internationally and can receive the payment from International buyer through PaisaPay.
Huzzi
eBay India
Regards,
Huzzi