S. 80P : Co-operative societies – Section must be read liberally and reasonably and in case of ambiguity, in favour of the assessee – Once a co-operative society provides credit facilities to its members, the fact that it also provides credit facilities to non-members does not disentitle it from availing of the deduction. Section does not require that the society has to give agricultural credit only –-Proviso which excludes co-operative banks which are co-operative societies engaged in banking business and not primary agricultural credit societies- Interpretation – Proviso cannot be used to cut down language of main enactment- Precedent — Ratio decidendi alone binding and not what may seem logically to follow from it. [ S. 2(19), 80P(2)(a), 80P(4), Kerala Co-Operative Societies Act, 1969, Ss. 2(F), (Oaa), (Ob), (Oc), 3, 4, 7, 8 , Kerala Co-Operative Societies Rules, 1969, R. 15. ]