S. 264 : Commissioner-Revision of other orders-Powers-Capital gains-Full value of consideration-Escrow account-Consideration received less than the amount credited in the account-Only actual consideration taxable-Power of Principal Commissioner not restricted to allowing relief only up to returned income -Recomputation results in income less than returned income-Section 240 not applicable-Entitle to refund of excess tax paid. [S. 45, 48, 240, 264, Art. 226]