declaring the action of the Respondents No 3 in refusing to receive register and release the sale inrespect of Residential Flat No 4 in Ground Floor of Municipal H No 42747/1/S4 with a built up area of 799 Sq feets including common area together with undivided share in land area of 20 Sq yards out of total area 475 Sq yards in the building known as Sandhy Apartments standing on Plot No 16 in Sy No 359/1 and 359/3 of Sardar Patel Nagar MoulaAli Malkajgiri Circle and Mandal Ranga Reddy District as illegal