S. 148A: Reassessment-Conducting inquiry, providing opportunity before issue of notice-Property held for charitable purposes-Accumulation of income-Once conditions of section 11(2) were satisfied, accumulated income could not be included in total income, and the Assessing Officer had no discretion to deny such benefit-Reassessment notice and consequential order were quashed and set aside. [S.11(2),12A, 139(1),148, 148A(b), 148A(d), Form No 10, R. 17, Art. 226]