Court held that as per S.79 and 82 of the West Bengal Co-operative Societies Act, 2006,   it is mandate to transfer, in every co-operative year, not less than 10 per cent. of its net profit to a reserve fund. The corresponding enabling procedure was in accordance with rule 119 of the West Bengal Co-operative Societies Rules, 2011.  Accordingly it was entitled to deduction of the interest earned as a result of the investment of the reserve fund in approved securities. The AO was  directed to work out the interest earned on the reserve fund, if invested and allow deduction therefor in addition to the deduction already allowed in applying S. 80P(2)(d) of the Act . ( AY.2012-13)