Hero Realty Pvt Ltd has purchased a 5- acre land in Gurugram for Rs 90 crore to develop a plotted residential project. The deal was facilitated by property consultant Cushman & Wakefield. The name of the seller has not been disclosed. Hero Realty, promoted by Sunil Kant Munjal's Hero Enterprise, has bought the land in Sector 85, Gurugram, the consultant said in a statement.