JAIPUR: The Dungarpur-Banswara-Ratlam rail line project, the foundation stone for which would be laid by UPA chairperson Sonia Gandhi on Friday, is likely to benefit the state Congress and chief minister Ashok Gehlot greatly. For years now, Banswara has been eagerly awaiting a rail link. The tribal district has no rail lines passing through. So it is not surprising that locals welcome the project. The last time a railway station was developed in the tribal area was in 1961, when Dungarpur got a railway station. However, Banswara