Tds

For example: If a Return of Income is filed by the assessee for the financial year 2010-11 i.e. Assessment Year 2011-12 on 15^th July 2011 (before the due date of filing of Income Tax Return i.e. 31^st July 2011), and he later discovers some mistake, he can file a Revised Return of Income Tax anytime up to 31^st March 2013 or before the completion of Assessment whichever is earlier.

for claiming the unclaimed TDS the assesse need to file revised return.

As per income tax Act, belated return can not be Revised so u could not file the same return for that Asst year year.