New Delhi, July 30 -- The Municipal Corporation of Delhi (MCD) has started greening the reclaimed portion of the Okhla landfill by planting grasses to rehabilitate the area and reduce dust from the site, officials said. A senior civic official said the Okhla landfill is likely to be the first legacy waste site to be cleared.The horticulture department has begun planting various types of grasses, including doob, vetiver and lemongrass. Flowering plants will be added in next phase. Official said doob grass (Cynodon dactylon) is being used to cover the first patch of around 3.5 acre. "We are also experiment with Vetiver (Chrysopogon zizanioides), also known as Khus and lemongrass (Cymbopogon citratus) to see if they can survive in this soil. ...