Investment of funds.

A self-supporting co-operative society, may invest or deposit its funds in— (a) any federal society of which it is a member ; (b) a post office, a District Central Co-operative Bank Limited, the Punjab State Co-operative Bank Limited or any Scheduled Bank ; (c) the equity of other self-supporting co-operative society ; or (d) any of the securities specified in section 20 of the Indian Trust Act, 1882.