Thank you all for your valuable suggestions!!!
My father's brother told us that there will not be any problem from his side being the natural guardian of his son. So we are planning to get that in writing as part of the registration process. Does it sound to be a better idea or do we need to go to court and do any other formalities?
MR Ravindar - You mentioned that "A minor property cannot be alienated without the permission of the court is a settled law." Can you pls elaborate the court proceedings that we need to take in this scenario?