Hello,Hope you are doing well

Yes,your son is eligible for reservation in Telangana .

ELIGIBILITY FOR STATE QUOTA SEATS

All the states participating in the NEET 2022 will be able to fill their 85% seats of MBBS/BDS though state counselling, while the remaining 15% of the seats will be filled through All India centralized counselling. The eligibility for the 85% quota seats of the states are mentioned below:

• Candidates must have completed/appearing his/her 10th and 12th from the state.
• Candidate must possess a valid domicile in the state.
• Candidate should possess a residency proof of the state.

Hope this helps you

ALL THE BEST