LUCKNOW: Whatsapp comes handy for railways in keeping its trains and stations clean. Having created a Whatsapp group has helped. Number of complaints have reduced," said divisional railway manager (DRM), NR, Lucknow, Satish Kumar.The train's pantry, toilets, coaches and passages are monitored through the group. The photos of train's compartments and other parts are clicked and uploaded on the group everyday. We were not able to do away with all of them during our routine maintenance of the train..