Niq For "Hiring Of Mech. Boat Including 2 Nos. Crew Members Etc. For Conducting Hydrographic Survey Activities For The Period Of November 2025 To March 2026 (05 Months) In The Stretch Of Ghazipur To Mmt Varanasi Nw-01 (River Ganga)”-Reg. / Iwaivn-Hysy0Hy1/2/2025-Hyd(Varanasi)