The Domain name 'NIC.IN' is owned by National Informatics Centre (NIC) and the same can be allocated ONLY to Indian Government Entities. However, now NIC is the authorised registrar for 'GOV.IN' Domains and it is advised to all Government Departments (Central & State) to host their websited under 'GOV.IN' Domain names.
Please note that the activity of registering the domain name is the first step in the overall process of web hosting in NIC and by itself does not imply the completion of the Hosting Procedure. The next step to be followed for web hosting is to undergo the webhosting Registration Process.
Proceed here for NIC.IN Domain Registration ....