Xrbia — possession of the flat k1 201

Address:

Mumbai City, Maharashtra

Dear sir/madam,
I ms ashwini atmaram shivekar i have booked flat at xrbia warai neral project k1 201 in the month of april 2016 in the office of xrbai which was at andheri west at the time of booking they told me i'll get possession on 2017 but now it's 2019 almost 3 years passed away but still i won't get the possession even my room is not ready i visited on last saturday that is on 21/09/2019 so many work is pending. I m not that much happy with the construction there is no sliding door between the bedroom and hall as per there criteria. 3 lakhs they included in the final amount as the city development charges and told us you will have no maintenance for life long, but actually the scene is different. Xrbai sanpada office people told me to pay gst before possession so i want detail information about that.
Please kindly note all my problem and resolve as early as possible.