Hello Aspirant,

See there is no need to worry for this issue because as there is an issue of only one letter so when you will register for JOSAA counselling your ID proof will also be submitted which must include your Father's name and if not then you might have to submit your Father's ID proof as well along with your ID Proof.

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

Documents which you have to carry to the reporting canter for NITs/IIITs/GFTIs :-

1. Three Passport Size Photographs identical to the one Uploaded in JEE Main 2021 Registration
2. Provisional Seat Allotment Letter
3. Candidate Undertaking
4. Proof of Fee Payment by e-challan or Internet Banking of SBI for Seat Acceptance (Rs. 15, 000 for SC/ST/PwD candidates and Rs. 35,000 for others)
5. JEE Main 2021 Score Card
6. JEE Main 2021 Admit Card
7. 10th Standard Mark Sheet or Date of Birth Proof
8. 12th Standard (or equivalent) Mark Sheet and Pass Certificate
9. Photo Identity Card
10. Medical Certificate
11. Category Certificate (if applicable)
12. PwD Certificate (if applicable)
13. OCI Certificate or PIO Card (if applicable)
14. Print out of Filled Choices for Seat Allotment

Documents which you have to carry to the reporting centre for IITs :-

1. Provisional Seat Allotment Letter
2. Two Passport Size Photographs identical to the one uploaded during JEE Advanced 2021 registration
3. Undertaking by the Candidate
4. Proof of Seat Acceptance Fee Payment by e-challan or net banking of SBI (Rs. 15, 000 for SC/ST/PwD candidates and Rs. 35,000 for others)
5. Valid Photo Identity Card
6. JEE Advanced 2021 Admit Card
7. Date of Birth Proof (10th Standard Mark Sheet)
8. 12th Standard (or equivalent) Mark Sheet and Pass Certificate
9. Medical Certificate
10. Category Certificate (if applicable)
11. Certificate for PwD (if applicable)
12. Passport (for foreign nationals) of candidates & parents or OCI Certificate or PIO Card (if applicable)
13. DS Certificate (if applicable)
14. Registration cum Locked Choices for Seat Allotment

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!!