IN is India’s Country Code Top Level domain (ccTLD) recognised by Govt of India. It's an official domain for India based businesses.
CO IN domain means, it's a sub category domain under IN domain name, the top domain extension for India. You can use CO IN domain just like any other domain name independently.
There are several sub category extensions including .co.in (usually for companies/business),.ind.in (for individuals sites, personal blogs etc),.net.in (for internet related services),.org.in (for non-profit organizations),.firm.in (for partnership firms),.gen.in (for any general use),.gov.in (Govt Organizations)
This is a bundled promotional offer and cannot be clubbed with any other offers.
The promo price does not apply to premium names.
Promotional price applies to new first-year registrations only. Hosting and Domain Renewals will be available at then regular rate.