This document describes a study of National Highway 12 between Jaipur and Deoli in Rajasthan, India. The highway is 148.77 km long and includes one major bridge, 26 minor bridges, four flyovers, and two railway over bridges. It discusses the scope of work for the highway project, which involves constructing exit and entry ramps, service roads, culverts, and widening bridges. It also outlines the process of highway construction, including subgrade preparation, subbase construction, base construction, and surface course construction using materials like asphalt and concrete. Highway maintenance objectives are also discussed.