If the property referred to is a building of 'apartments', firstly the builder should heve complied with the mandatory requirements of the special enactment applicable to 'apartments'.
In case the prioperty is in Bangalore or any other place in Karnataka, then the state enactment will spply.
Many other States (e.g . Tamil Nadu) has its own specisal enactment).
Be that as it shoiuld, as is now commonly known,, many of those requirements still remain to be made a serious note of, by one and all, and consequently, total chaos is obtaining in the field.
For having a first hand overview, one may have to go through the whole lot of material available in public domain.
In particular, the Posts @ the following links may be helpful :
https://apartmentadda.com/blog/2009/03/10/a-guide-to-apartment-owners-associations-in-bangalore/comment-page-2/ - comment-1531
https://www.commonfloor.com/articles/handover-of-apartment-to-association-1691.html
The queries pertain to a subject , though left to itself, is quite simple, but everyone interested has made his own contributuion to render it as complicated,as humanly possible.
Caution: The comments above, are simply intended to provide some broad hints; for the interested person to keep in mind, before deciding to go in for any legal guidance.
vswami