All you need to do is to take proof of your identity, and current residential address to the Assistant Librarian (Circulation & Stack Maintenance). Proof of identity can be any current official document that gives your name, profession, Course Name & Academic Session (if applicable) and address of the Institute, and Proof of current residential address may be Voter Id Card, current electricity bill, driver's licence, recent bank statement, pension book etc.To join Central Library you will need to apply for one of the membership categories:

• Internal Membership: Staff, Research Associates, Visiting Scientists,Research Scholars, Project Linked Staff, Student, Office Bearers, and Council Members of the Institute are automatically eligible for membership of the Institute Library. However, they have to apply for the membership and pay refundable security deposit in certain cases. Fulltime staffs of the Institute are exempted from payment of security deposit.
• Open Learning Membership(Free): Any user, who is only interested in studying documents in the Library and availing other services for short period, must hold a valid Open Learning Membership Card. The validity of these Cards is limited to 15 days though there is the possibility of prolongation.
• External Membership (Public Access Membership): If interested,members from the public may apply for the membership. If approved by the Library Authority, concerned person has to pay an annual subscription and the refundable interest free security deposit accordingly. Institute/Organization can also join the Library by paying an annual subscription and security deposit.
• ISI-Society Membership: Current members of the Indian Statistical Institute Society are eligible for the membership of the Central Library. However, they are exempted from paying annual library subscription fee.

By the act of using any facility of the Library, a user agrees to abide by the rules of the Library and E-resource Access Policies Please consult Assistant Librarian (Circulation & Stack Maintenance Unit) at 2575- 2109 for more information.