Question 1. Is plan amendment legal after partial sale of apartments without the consent of those who purchased apartments prior to amendment?
The project had a plan approved for flats at that time and the constructions also started on that note. In fact half of the project has been completed while the remaining was kept in abeyance due to the builder withdrawing from the project or some other reason. However since the project was made as per original plan, now since the owner wants to have some more benefits out of the stopped project or to make good the loss, he cannot, in my opinion, may change his original plan without properly closing this project. There are lot of things involved in it, for example, the UDS, common space, society/association, individual shares etc, besides approval from authorities concerned. Thus it cannot be possible to go ahead with the new proposal without observing the above said formalities.
Question 2. Can Villas with exclusive areas be constructed on land in which 122 people possess UDS without consent of all involved?
No. If The owner is still adamant and arrogant on his decision, an injunction may be obtained against his proposed activity from court of law.