Prove your Indian Citizenship without revealing anything about yourself.
Prove you Own a Device using on-device Biometrics without revealing your address.
Prove you own any Token (ERC20, NFT etc) without revealing anything about yourself.
Prove your are in an area without revealing your location.
Prove that you know the SHA256 hash of a value without revealing the value.
Prove that you know an encrypted value without revealing it.
Prove that you have an account at a site without revealing your sign-in details.