IDNs - Internationalized Domain Names (IDNs) permit the global community to use a domain name in their native language or script. This is enabled by allowing domain names to have characters from different scripts, beyond the letters (a to z), digits (0 to 9) and hyphen (-). Such domain names could contain letters or characters from non-Latin scripts (for example, Arabic or Chinese or Devanagri).
IDNs variant TLDs (both gTLD & ccTLD) have also started coming into existence.
Examples: IDN ccTLDs are: .भारत (Devanagri/India), .中國 (Traditional Chinese/China)
Examples: IDN gTLDs are: .संगठन (.org in Devanagri), .コム (.com in Japaneese)