Hello Aspirant,

Once you qualify JEE-Mains then you will have to appear for JEE-Advance if you are seeking admission in IITs and then after the declaration of JEE-Advance result you will have to register for JOSAA counselling because only through JOSAA counselling you can get seat into NITs and IITs on the basis of your JEE-Main or JEE-Advance score respectively.

Complete process for registration for JOSAA Counselling is mentioned below :-

• Registration for the counselling on josaa.nic.in
• Choice Filling and Locking of Choices.
• Mock Seat Allotment
• Seat Allotment Result
• Payment of Seat Acceptance Fees and Download of Provisional Seat Allotment Letter
• Reporting to the Reporting Centres
• Confirmation of Admission

For complete details about JOSSA Counselling process kindly check out the link given below :-

https://engineering.careers360.com/articles/josaa-counselling

I hope this information helps you.

Good Luck!!