I dont see how wifi in 400 stations is going to help anyone. If the stations are in well populated areas, then mobile internet should not be a problem in any case. In rural and lesser developed areas, wifi means nothing to consumers. The younger generation does have wifi smartphones, thanks to Chinese companies putting out dead cheap ones. However, of what use is the wifi in railway stations, I fail to understand.

If the use is for train information or related stuff, the govt. has to maintain that info on screens and notice boards.

If it's for talking to others, well, that too is of limited use. Most people wait for maybe a couple of hours before they board onto a train.

If this is to help people waiting in lounges, then I'd rather they (govt.) monetize it. Especially for those waiting in AC class lounges. In anycase, no one here really plans for long layovers in railway stations.

I just dont get of what use is wifi in railway stations.

Better thing for the govt. would have been to invite and pay google for creating a distributed fibre optic network across India, connecting rural villages, using their expertise in handling large amounts of data.