This project initiate for providing the office facility for solving the infrastructure development related issues. The Office was formatted and Established at this Place under Provincial Government, Koshi Province to provide service regarding construction of development infrastructure related to water and irrigation project construction. Under this Office Handles Khotang District. The office has old building constructed at 2031 B.S. to run smoothly the entire Service, this office is very dangerous to serve the daily service after shaking of Gorkha Earthquake, so it intends to build a new Office Building Block including all service facilities with Master Planning.