S. 12A : Registration-Trust or institution-Genuineness of activities was not in doubt-Turnover exceeded Rs.10,00,000-Not mandatory to cancel registration already granted under section 12AA to a charitable institution merely on ground that cut-off specified in proviso to section 2(15) is exceeded in a particular year-Cancellation of registration was held to be not valid. [S. 2(15), 12AA(3)]