the health of the lake eco-system was, therefore, monitored at six monitoring points on the lake for light, temperature, oxygen, nutrients and the type of aquatic plants that grow in the lake. during the study, it was noted that the lake which has catchment area of is fed by three drains at different locations; the first drain is from the madras engineering group (meg) centre (of the army), the second drain is from jeevanahalli and the third drain is from doddigunta and traverses through kattariyamma garden, godhandappa garden, munivenkattappa garden, muthamma garden, muniamma garden, kempurayana garden and new corporation colony and all these areas are within from the lake and inhabited by slums dwellers.