can i buy a Domain Name from Bigrock.in??
Sorry i don't have any idea on Bigrock.in.As an alternative from my experience i would say this site 9Cubehosting.com for domain registration at low cost with good customer support.It's also Trojan free too.
This domain name Bigrock.in is not available that means already registered and it depends on the owner that whether he want to sell or not.. So it is uncertain to say any thing about this domain.