while filling online tds challan for payment of tds, i ve selected wrong assessment year by mistake. please guide me towards the rectification of the same
No need to worry a very common mistake. Please write a letter to your TDS Assessing Officer requesting him for necessary correction in challan data along with a copy of said challan. You can also file your TDS return even before correction mentioning correct AY. Same will be validated by CSI file downloaded from NSDL.