Joint Property Dispute Among Brothers

There are two brothers in Andhra Pradesh. They bought some land as joint property in 1981. In 1981 younger brother is minor(10 years old) so his mother was assigned as his guardian. In 1997 older brother got pattadhar passbook only on his name for entire property from then he is in possession of that land and younger brother didn't file any case or took any action against older brother till now but in subregistrar office it's still showing both brothers names as owners of joint property. Can younger brother get his share now.