Hari Construction emerges as L1 bidder for supply of ballast for Mokama Bridge-cum-Doubling of Rampur Dumra-Tal-Rajendrapul Rail Line Project June 12, 2023 | Awarded, Project Updates Hari Construction and Associates has emerged as the lowest (L1) bidder for supply of ballast for Mokama Bridge-cum-Doubling of Rampur Dumra-Tal-Rajendrapul Rail Line Project. This content is restricted.