S. 263 : Commissioner – Revision of orders prejudicial to revenue – Amalgamation – Accumulated Loss and unabsorbed depreciation – Both conditions to be satisfied concurrently- Sick Industrial Companies (Special Provisions) Act, 1985, Act override those of the 1961 Act- Additional depreciation – Revision is held to be not valid .[ [S.72(2) 72A , Sick Industrial Companies (Special Provisions) Act, 1985, S. 18 32(2) ]