Abstract: Nowadays, highway construction suffers from delay and cost overruns, which causes traffic problems, changes of design, poor planning, disputes, cost overruns, poor safety practices and time delays. Researchers in developed countries have realized the seriousness of this shortfall and suggested solutions to resolve it. Due to the inherent risks and increasing complexity of modern construction projects, delays and cost overruns have become common facts in the industry. Researchers and practitioners have used many techniques to assess project delays and apportion delay responsibility among the parties involved. This research deals with the causes which severely effect in delay of infrastructure projects in India. The delays and cost overruns have become a hallmark of infrastructure projects in India, research in delay and cost overrun in highway projects has not been popular researched yet. Any construction project success can be realized by achieving its objectives within the planned time, budget and level of quality. One of the major problems that face the construction projects in general and road projects in specific is being behind the schedule, i.e., delay in submission. Delay can be defined as postponing the project completion time due to predicted and unpredicted causes. Completion time is very essential in construction; because “Time is Money”. In some cases, to the contractor, delay causes higher overhead costs because of longer construction period. As well as that, material costs may increase due to inflation. To the client, especially if he is investor, delay means losing profits that are planned to be earned after starting the investment on the scheduled time.