• Dot-in works just like dot-com. Both are called top level domains, or TLDs in techspeak. Dot-com and dot-edu are examples of generic domains. Other examples are dot-net and dot-org.

  IN is the country code for India.

• CO.IN is the country code for India. The .co portion of the extension indicates that the domain name is a commercial entity.
  
• FIRM.IN is the country code for India. The .firm portion of the extension indicates a firm or company.
  
• GEN.IN is the country code for India. The .gen portion of the extension indicates general use.
  
• IND.IN is the country code for India. The .ind portion of the extension indicates and individual.
  
• NET.IN is the country code for India. The .net portion of the extension represents the word "network" and is most commonly used by businesses that are directly involved in providing Internet services.
  
• ORG.IN is the country code for India. The .org portion of the extension indicates that the domain name is a nonprofit organization.

Will my name .IN domain work anywhere in the world?
Yes, a .IN name works exactly the same as a .COM name, it just happens to have a different ending. It is treated in precisely the same way as .COM by all the DNS nameservers in the world.

Why do I want a domain name ending with .IN?
There are already more than six and a half million domains registered in the .COM top level domain. Most of the good, short, easy to remember names in .COM are already taken by someone else. In .IN you can have a domain name that fits your business, idea, family or other name more closely