"The Delhi-Howrah route scores the highest ... 88 per cent network coverage followed by the Bangalore-Chennai route with 78 per cent and the Delhi-Mumbai route at 74 per cent.
"While stations are getting high-speed WiFi connection, the RailYatri data showed fluctuating mobile connectivity on long-distance train routes," Manish Rathi, the CEO of Railyatri.In, said.
The study indicates that on some routes, the network connectivity is as high as 70-88 per cent and at other places it drops to 20 per cent, depending on the network providers available.
RailYatri has also launched a mobile application which enables a passenger to check network connectivity on any train route.
Railways aims to provide free WiFi at 400 major stations. At present, the facility is available at 120 stations.