S. 264 : Commissioner-Revision of other orders-Delay of two years-Pedantic-Genuine hardship cannot be restricted to severe financial crises is only unwarranted-The Authorities have to do substantial justice-Directed to condone the delay and decide the matter on merits-Rectification of mistake-Duty of Assessing Officer-Pendency of rectification application for six years-The Assessing Officer duty bound to pass order expeditiously-The Hon Court directed to place Copy of this order to the Chairman of CBDT, so that suitable actions are taken to comply with the directions given by this court. [S. 44AB, 80IC, 119(2)(b), 143(1), 154, Art. 226, Form No 10CCB]