"MD Sinha, conservator of forest, Gurgaon circle, said, "Mangar bani definitely needs to be declared a protected forest. They received a shot in the arm last year when CM Manohar Lal Khattar approved a 500-metre no-construction zone around Mangar Bani. State forest minister Rao Narbir Singh told TOI, "The state declared a 500m radius around Mangar Bani as a noconstruction zone. GURGAON: More than a year has passed since the Haryana government made a commitment to protect Mangar Bani by officially demarcating it as a forest. However, more needs to be done to protect Mangar Bani as a forest.