Kasturba Gandhi Marg,
New Delhi-110 001
Contact No.: +91-11-23070292/9818383222 (GM)
                     +91-11-23383438/23383572 (Reception)
                     +91-11-23388107  (Manager)

                     +91-11-23073138 ( Accounts)

                     +91-11-23387457 ( Library )
Fax:               +91-11-23381779
E-Mail: gm@csoi.org.in,     jayant@csoi.org.in