To pay taxes online the taxpayer will select the relevant challan i.e. ITNS 280, ITNS 281, ITNS 282 or ITNS 283, as applicable. Enter its PAN/TAN as applicable. There will be an online check on the validity of the PAN/TAN entered. If PAN/TAN is valid the taxpayer will be allowed to fill up other challan details like accounting head under which payment is made, name and address of TAN and also select the bank through which payment is to be made, etc. On submission of data entered a confirmation...