Indian Railways succeeded in installing bio-toilets in more than 68,000 passenger coaches so far thus preventing discharge of human waste on tracks.
Total 68, 690 coaches fitted with bio-toilets. The process of installing bio-toilets is the remaining 400 coaches is on and is likely to complete in a month period, said the official.
The bio-toilets prevent direct discharge of human waste on track and will ensure not only a clean environment but also helps keep coaches clean and improvement in maintenance of track said an official from the railways.
Now the national transporter is embarking on converting bio-toilets into bio-vacuum toilets in coaches to save water.
The railways have developed a new technology for bio-vacuum, in collaboration with the research arm of the Railway Ministry, Research Designs and Standards Organisation (RDSO).
Already around 15 trains including a few Rajdhani, Shatabdi, Humsafar trains and Vande Bharat Express, are fitted with bio-vacuum toilets.