How To Download Your CSI File

Step 1: Visit the TIN OLTAS website

Screenshot of the TIN OLTAS homepage

Step 2: Enter your TAN Details and download the CSI File

Screenshot of the Challan Status Query form for downloading CSI File

  • Fill-in your TAN Number
  • Enter the appropriate start and end dates
  • If everything is valid, you should be able to click on the Download Challan file button and successfully download the CSI file