Books and writing materials at subsidized prices is one feature that makes the co-operative store popular. The store’s photocopying facility is well utilized by the students and the staff. It also offers services like document lamination and spiral binding. The store is also the selling unit of the Vidya Nikshepam. Prompt and efficient service with a smile is a feature that contributes to the popularity of the store.The store is managed by Mr. T. D. Saly, assisted by Ms. Deepa. They work under a committee led by Sri. Rogimon P. Thomas of the Dept. of Botany.
The CMS College Staff Co-operative Society belongs to all members of the staff, teaching and non-teaching. The Society helps its members with financial loans and mutual funds. The office is managed by Smt. Susamma Chacko under the supervision of a committee with Sri. A. J. Varghese (Administrative Assistant) as President and Sri. Sam Rajan, Dept. of Physics as the Secretary.
The Kottayam North Post Office is housed within the campus. The State Bank of Travancore and its ATM counter has its branch in the College campus.