Maps

A 1924 map of Bangalore showing the major waterbodies, several of which are not around today. The map was taken from this site: http://homepages.rootsweb.ancestry.com/~poyntz/India/maps.html

Tanks in Bangalore were designed in cascades from higher to lower elevations ; as a tank overflowed the excess water would flow into the next tank in the cascade. This complex arrangement is very easily disrupted with unplanned growth. These maps from http://parisaramahiti.kar.nic.in/lakeseries.html show the cascade series:

Varthur Lake Series: