S. 245C : Settlement Commission-Settlement of cases-Conditions-Validity of amendments to Act abolishing Settlement Commission and Circular issued by CBDT stipulating final date for filing application before Settlement Commission-Dismissal of writ petition by a single judge at admission stage is held to be not proper-Respondents are directed to file affidavits for consideration of legal aspects-Limitation-Search cases-Notices are stayed till the disposal of appeals. [S. 132, 153A, 245D, Art. 226]