The Delhi and Centre government have started jointly the project in which Delhi Municipal Corporation and Delhi Development Authority have joined also. The answer of Nitin Gadkari followed the issue raised by member of Congress Digvijay Singh about the pollution in river Yamuna in Delhi. The Congress member reproached the central government of not achieving the promises made by the preceding government about cleaning the river. According to Singh, the only way to clean the river Ganga is to de-pollute Yamuna.