Section 116(1) in The West Bengal Co-Operative Societies Act, 1983
(1)If any property mortgaged under this Chapter is destroyed wholly or in part or if the security for any loan is found to be insufficient on valuation in the manner provided in the rules or the by-laws, the mortgagor shall be required on the service of a notice on him in the prescribed manner, to furnish such further security, and within such period, as may be specified in the notice.