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You can become Associate Member with your mother's written consent. Under the Model Byelaws, which is followed by most Co-operative Housing Societies in Maharashtra and under the Act, an Associate Member can only vote at a General Body meeting, if the primary member is not present. He has no other powers and hence he cannot become a Managing Committee member.
However the Maharashtra Co-operative Societies Act, 1960 says that an Associate Member can have such other powers as may be conferred by the byelaws of the Society. Hence if the byelaws of your Society allow an Associate Member to become Managing Committee member, you can stand for election to the Managing Committee.