11 January 2013
You can correct it through bank... and the respective timelines for making the correction is mentioned under Services -> OLTAS -> Correction in OLTAS challan.
11 January 2013
the following fields can be got corrected through the concerned bank branch: Assessment Year Major Head Code Minor Head Code TAN/PAN Total Amount Nature of payment (TDS Codes)
Other fields such as Major head, Minor head, Nature of payment can be corrected Within 3 months and except this all they need to be get corrected within 7 days