Domain Naming Conventions :

Following are the basic rules to be observed while choosing a domain name :

  • Domains can contain the English-language letters a through z, and the digits 0 through 9. 
  • You can also use hyphens, but hyphens cannot begin or end a domain name. Also, two hyphens together is usually not permitted, and hyphens cannot appear in both the third and fourth positions
  • Spaces and special characters (such as !, $, &, _ and so on) are not permitted. 
  • The minimum length is 3, and the maximum length is 63 characters (excluding extension "").
  • Domain names are not case-sensitive.(i.e. you may use a mix of upper or lower case letters)

Following are some restrictions on the composition of domain names under .in :

  • Generic names are not allowed.(eg. is not allowed)
  • For domains under, the domain must be derived from the name of the organisation name/entity. (eg. Central Vigilance Commission can opt for a domain but NOT or
  • One and Two letter domain names are not allowed (e.g.
  • The generic second level names(SLDs) of .in should not be used as third level names. (e.g. and are not allowed as mil and org are generic second level names under .in)
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