Indian railways to have bio-toilets in all trains by 2022 After successful application of bio-toilet in all over the country Indian railway has decided to install bio-toilet to in all coaches. Seeking to provide a clean and eco-friendly travel to passengers, railways is planning to eliminate direct discharge type toilets from its entire fleet of passenger coaches and replacing the system with bio-toilets by the end of 2021-22. Railways has assured the NHRC that it is making sincere efforts to overcome the problem of falling of human waste from train toilets on rail tracks. The prevailing open discharge of human waste on tracks is not only corroding the rails, it is becoming a serious environment hazard for the railways. Continuing its efforts to provide a clean and eco-friendly travel to train passengers, railways has expedited the work of fitting bio-toilets in coaches with over 2,000 of them already installed so far. Railways have about 50,000 coaches. We are manufacturing and supplying bio toilet (Retention Tank) to Indian Railway.