There are three inlet channels, which feed the lake and an overflow section on the eastern side in the masonry dam of 800 metres (2,600 ft) length.

To prevent loss of water due to evaporation, cetyl alcohol (hexadecanol) is sprayed over the lake surface.

[4] Some of the water quality parameters reported[5] relate to: Eutrophication has occurred in the lake due to algal bloom; the dominant species causing this are algae: Microcystis sp and submerged macrophytes.

The Biomass production due to macrophytes is reported to be a maximum of 864.9 grams per square metre [g/m2] (0.1771 lb/sq ft) on the surface of the lake, with a minimum of 329 g/m2 at the bottom.

The biomass recorded due to plankton is reported to be at maximum during January, as 67 milligrams per litre [mg/L] (2.4×10−6 lb/cu in) at the surface and 23 g/L at the bottom of the lake.

The first effort to desilt the lake and improve its water quantity was undertaken by local citizen groups and environmental conservation organizations.

The restoration works pursued are Limnological Conservation Works (introducing new varieties of fish species), Ecological Conservation Works (catchment area treatment), Hyacinth removal (through bio-control), lining of unlined canal from Moti Magri Hill to Fatah Sagar Lake, construction of sewage lines, institutional development in the form of creating Special Purpose Vehicle (SPV) for the lakes, etc.

[2] Every year a festival called the Hariyali Amavasya Mela (Green New Moon Fair) is organised at the lake precincts, in the month of Shravan (August/September).

This aquarium, built under the Fatehsagar Paal, showcases over 200 species of fishes brought from 16 countries across the world.

Performances were made by artists and musicians from more than 12 countries, including Spain, Ghana, Venezuela, Italy, France as well as India.