In a move to curb open defecation and urination in Chennai,183 self-cleaning public eToilets have been installed in the city. 

An Indian social enterprise, Eram Scientific Solution is the brains behind the project and has already installed over 1,600 eToilets in private buildings and schools across 18 Indian states. In 2012, it even won a grant of $450,000 from the Bill and Melinda Gates Foundation.

Source: b'Source: Twitter'

So what's so special about these toilets? As the name suggests, these toilets require no manpower for its maintenance as it has a self-cleaning mechanism thanks to a sensor-based technology.

These are the major features of these e- toilets:

To conserve water, the toilets are programmed to flush 1.5 litre of water after three minutes of usage and 4.5 litres if the usage is longer. 

This “smart” toilet also washes the platform by itself after every five or 10 persons use the toilet. An instructional note is pasted outside the toilet to make the user familiar with the functioning of this toilet.

Here's a video by to get a better understanding :