I have downloaded ITR4 for Assessment year 2011-12 recently from incometax india website and filled the particulars all the sheets are validated only in the PART B Computation sheet it is not validated. Because it asks fill the date. But these sheets are protected therefore, not possible to feed the date. When unprotecting the sheet it asks the password. Please what is the password for unprotect the sheet and feed the date of filing the return. Please give me suggestion and password answer.