Jay, IIT Kanpur has released an official notification that you can change your Category now until May 15th. If you have already submitted the admisison form, you need to send a mail to jam@iitk.ac.in with the following details:

• Name:
• Application ID:
• Roll Number:
• Registered Email:
• Registered Mobile No.:
• Category/PwD status on the Application (Current):
• Category/PwD status to be changed to: