N.G.M. College Students’ Co-operative stores, established in the year 1957 is registered under the Tamilnadu Govt. Co-operative Act. It is a service oriented organization, governed by the elected board of directors and the general body , the Principal being the Ex-officio president. All the students enrolled in the college are associate members of the stores. At present there are 175 Members and nearly 2500 Associate Members.

The objective of the co-operative store is to procure and supply quality books, note books, Stationeries etc at a reasonable rate.