Indore: Indore-Jammu Tawi Malwa Express will soon have the environment-friendly bio-toilets to ensure that the railway tracks do not get littered, a senior official said.

All AC and non-AC coaches will be retrofitted with bio-toilets which could convert human waste into methane gas after setting up aerobic and anaerobic chemical reactions in the containers attached below the coaches, Western Railway Carriage Depot officer I L Sahu told a press conference here.

No waste or effluent would be discharged on the tracks from the running train, he said.

Meanwhile, Sahu informed that the Ratlam division of the western railway has been spending Rs 30 to 35 lakh monthly on maintaining 120-odd coaches.

The Ratlam depot also has a mechanised laundry to clean up over 1.5 tone of linen and blankets of ac coaches daily, he said.

An extension plan for the 710-metre shade at the depot is also on cards, Sahu added.