For the Railways , a social obligation ; for these gangmen , a life line. The water tanker (ex milk wagon) atttached to the 207 Viramgam - Okha Passeneger supplies water to an underground tank at a wayside ganghut. Very ingeniously, a discarded telegraph pole is used for a conduit to transfer the water. Somewhere between Hapa and Jamnagar stations. 2004-01. By AVIMANYU PYNE (for Showcase).