S. 148A: Reassessment-Conducting inquiry, providing opportunity before issue of notice-Accumulation of income-The Assessing Officer had looked into the relevant details and particulars of accumulation during the course of the original assessment, and the assessee had provided all the details and documents during the original assessment proceedings-The order initiating the reassessment was based not only on a change of mind but also on non-application of the mind-Show cause notice and order quashed. [S. 11(2), 148, 148A(b) 148A(d), R. 17, Art. 226]