To curb the malpractices of certification or documentation by users by impersonating themselves as legitimate, the Department of Information Technology & Electronics, Government of West Bengal has come out with the concept of UDIN i.e. Unique Document Identification Number. It will secure the certificates/reports/ document attested/certified by Public, government officials and other parties. This will also enable the Third parties to check the authenticity of the certificates/reports/documents.

1. It will remove the hassles that public may have to go through to upload the same set of documents at multiple platforms- thus creating a single stage verifiable document portal.
2. The government departments and agencies will not have to store the same documents at multiple levels, thus saving storage cost.
3. Because it is based on Blockchain technology, the documents so uploaded remain immutable, whereby no user can claim it to be false, thereby creating a sense of security for the parties involved.
4. A user can share the uploaded documents on multiple platforms by simply sharing the UDIN of the documents and providing the access to the same.

Rs.100/- for single party documents and Rs.500/- for contractual agreement (for 1 year).

1. The access to the documents can only be provided to the people / authorities who have been so allowed by the user during UDIN creation.
2. Even the Government or the Government officials cannot access the data if not allowed so by the user.
3. The documents of the user(s), would be kept through the blockchain technology, thus remaining immutable.

Blockchain technology is an advanced database mechanism that allows transparent information sharing within a business network. A blockchain database stores data in blocks that are linked together in a chain. The data is chronologically consistent because you cannot delete or modify the chain without consensus from the network. As a result, you can use blockchain technology to create an unalterable or immutable ledger for tracking orders, payments, accounts, and other transactions. The system has built-in mechanisms that prevent unauthorized transaction entries and create consistency in the shared view of these transactions.

Business runs on information. The faster it’s received and the more accurate it is, the better. Blockchain is ideal for delivering that information because it provides immediate, shared and completely transparent information stored on an immutable ledger that can be accessed only by permissioned network members. A blockchain network can track orders, payments, accounts, production and much more. And because members share a single view of the truth, you can see all details of a transaction end to end, giving you greater confidence, as well as new efficiencies and opportunities.

After creation of user’s profile validated with Aadhaar ID, one can upload his/her documents to obtain UDIN.

The company needs to login through its PAN and authenticate a user through its DSC the authenticated user can upload necessary documents on the UDIN portal.

UDIN stores Aadhaar authenticated documents using blockchain technologythus making it immutable. Whereas, DigiLocker is a secure cloud based platform for storage, sharing and verification of documents & certificates