(A) Delhi Co-operative Societies Act (35 of 1972) , S.2(i), S.20— Co-operative housing society - Members - Seniority - Managing Committee on same day approving membership of some persons for first time and regularising membership of some persons admitted earlier - Inter se seniority - Persons whose membership is regularised would be senior. Co-operative Societies - Membership - Seniority. (Para 10) (B) Delhi Co-operative Societies Act (35 of 1972) , S.12, S.88— Bye-laws of society - Retrospective amendment - Membership of housing society - Persons not eligible for membership enrolled as members by Society long back - Amendment of Bye-law to regularise their membership - Notification under S.88 giving retrospective effect to amended Bye-law from date first of such person was enrolled - Notification serves the purpose of amendment and is valid. General Clauses Act (10 of 1897) , S.21— Constitution of India , Art.245— Co-operative Societies - Bye-laws - Retrospective amendment. Under the Bye-laws of the Rehabilitation Ministry Employees' Co-operative House Building Society only such persons who were employed and posted in the Rehabilitation Ministry in Delhi itself were intended to be eligible for membership of the Society....