Dear Shri Bayyareddy DK Ji,
Said Section 39 (9) reads as follows:
11[Where] any registered person after furnishing a return under sub-section (1) or sub-section (2) or sub-section (3) or sub-section (4) or sub-section (5) discovers any omission or incorrect particulars therein, other than as a result of scrutiny, audit, inspection or enforcement activity by the tax authorities, he shall rectify such omission or incorrect particulars 5[in such form and manner as may be perscribed], subject to payment of interest under this Act:
Provided that no such rectification of any omission or incorrect particulars shall be allowed after 12[the thirtieth day of November] following 6[the end of the financial year to which such details pertain], or the actual date of furnishing of relevant annual return, whichever is earlier.