Khadakwasla dam is a dam on the mutha river 20 km from the city of pune maharashtra , india . This dam across the river mutha created an attractive lake , now known as khadakwasla lake.this lake is the main source of water for pune . And it's suburbs . The largest lake in the area is mulshi lake , some 50 km north west of khadakwasla , which has a rather large dam confining it . It release water info the mula river , which meanders some 75 km before reaching pune .