Supertech Limited — Flat possession delay

I have purchased a two bhk flat in Super Tech Romano sector 118.All dues were settled last year in February and in March I received the ndc letter.
My flat is in tower A4/03 where some civil work is required to be done.its been almost a year the unit is not yet delivered inspite of paying all the dues.

I tried to contact the concerned person who are taking care but every time they have different reason for the delay in possession.

I would request to please look into this matter so that the possession can be handed over