Rashmi Housing — possession delays

Booked 2rk in phase v on dec 2011,
Plan was to complete construction within 3 years, present construction status 50% only after 6 years, team is telling some govt issues going on, not sure how only this project gets affected, rest all projects ongoing and some completed also, not getting any clear idea and answer from anyone, 100 calls no response, multiple visits, same answer, not getting possession and neither refund. Complete savings stuck here, waiting and just waiting.