The room was sold to a flat owner.Now the son, owner of a portion of the garage only claims all common rights like electricity, water, key of main gate, right to stair case & roof right though being an outsider he has no function inside the building. Now what should the flat owners do?
If there is no mention about who will have these rights in the registered sale deed, then the garage owner, if is aggrieved over the claim made by his rival, can file a suit for declaration.
The declaratory suit should be filed specifically seeking to declare the rights over the stair case and the roof either jointly or singly based on the merits in his side.
Until there is a civil case in this regard, even the compromise arrangement will become a problem in the future too when the new owners emerge.