To cancel your track request, delete your email id from the tracking list and import again by entering the following details: 

1. Statement Type: "Detailed"
2. Period: "Specific Period", from 01-Jan-1990 to Present Date
3. Folio Listing: "With Zero Balance Folio"
4. Email ID: The one that is linked with your investments 
5. Password: Your PAN number in CAPS