You will need to allow everal months to go by for him to recover from this surgery and let the swelling go down (perhaps 3-6 months). They he needs to see a strabismus (eye muscle) specialists ophthalmologist. They are often called "pediatric ophthalmologists". Your present surgeons can make the referral.
No need to leave home. India has many find strabismus specialists but I cannot give you a name or institution that is best.
JCH MD
I am a community leader here, not a doctor. I am also an experienced eye patient. Welcome to our community
I am so sorry that your son had an accident, and that now he has vision problems.
The doctor will advise you.
I encourage you to follow up with us, and to respond to other community members, so that all of us can help each other learn about our eye care.
Anna