Railway Ministry has said around 55 per cent of the total passenger carrying coaches of the railway have been installed with bio-toilets. <br/>This was stated by Minister of State for Railways Rajen Gohain in a written reply in Lok Sabha on Wednesday. <br/><br/>He said, bio-toilets are an important step towards Swachh Bharat and it keeps tracks clear of human excreta. He said, railway has set a target to complete the work of installation of bio-toilets in coaches by March 2019. <br/><br/>The Minister said, all railway workshops have been instructed to compulsorily install bio-toilets in all existing in-service eligible coaches undergoing mid life rehabilitation and periodical overhaul.