Starting January 1, 2005, all new registrations are to be made through the accredited registrars.
Education and Research Network (ERNET) will be the exclusive registrar for the ac.in, edu.in, and res.in domains. More information.
National Informatics Centre (NIC) will be the exclusive registrar for the gov.in domain. More information
Any of the accredited registrars of .IN Registry can provide registration for the .in, co.in, net.in, org.in, firm.in, gen.in, and ind.in domains.
So for you this is the place to go *www.registry.in/register/accredited_registrars
Source: *domain.ncst.ernet.in/