Abstract— to determine the key causes of construction project delays in India Following data gathering via a questionnaire survey with a wide range of construction professionals based in Metro Projects, the key causes of delays from this research study were analyzed. The findings of this study used an importance index to determine the major causes of delays, and the main conclusions drawn from the data could aid the construction industry in better assessing not only the major causes of delays on construction projects, but also how to minimize themthrough proper planning. However, greater understanding of health, hygiene, and safety risks may present opportunity for safer working practices. The importance of safety leadership is sometimes disregarded in guidelines, despite its importance in ensuring the safe implementation of working procedures.Apart from addressing the rising demand, Delay issues can be avoided in the current context by appropriate decision-making throughout the construction process, although more research is required. This could include research into decision communication, the content of construction site manager training programmes, the value of apprenticeship schemes to provide a more skilled workforce, the possibilities of greater use of pre-cast materials, and so on. This study identified the causes of construction project delays in India during the pandemic.Because metro projects are such an important element of the city, they must be completed as soon as possible for public benefit. Almost all of India's metro projects are experiencing delays. Delay is widely regarded as the most common, complicated, and dangerous problem in Metro projects. Overruns in time describe the majority of Metro projects in developing countries. Deadlines and unpredictability plague all initiatives, regardless of their size or complexity. Every construction project experiences delays, and the extent of these delays varies greatly from project to project. This study conducts a thorough evaluation of prior studies on time and cost overrun drivers.Keywords- Delay, Metro, Cost, Time, budget, Management, Planning, Schedule