S. 4 : Charge of income-tax-Mutuality-Clubs-Interest eraned on deposits-Incomeearned by clubs through its assets and resources, from persons who are not members of clubs-Income is not covered under principle of mutuality and would be liable to be taxed under provisions of Income-tax Act-Precedent-It is a settled position of law that only the ratio decidendi of a judgment is binding as a precedent. [S. 2(24), 56, Art. 141]