A kulhad is a clay cup. It is thrown away after one use. In 2004 the railway minister Lalu Prasad Yadav tried to bring kulhads back for tea at stations and on trains.
By 2008 the effort was considered a failure. In 2019 the minister Nitin Gadkari tried again: “I have written a letter to Piyush Goyal to make use of kulhads mandatory at 100 railway stations.”