Numerous construction projects in India are grappling with significant delays, leading to surpassing the initially set timelines and budgets. The term "delay" in this context refers to the extension of time beyond the initially planned completion period. This research initiative aims to identify the most influential factors contributing to delays in Indian construction projects through a combined approach of literature review and a questionnaire survey. The literature review unearthed 103 causes of delays, which were categorized into 8 distinct groups, and identified 8 effects associated with project delays. Notably, authors presented varying rankings for these delaying factors, reflecting diverse perspectives influenced by different native and contextual considerations. 1. The pre-planning stage presents a crucial opportunity to plan numerous aspects, ensuring that the project is set on the right course right from its inception. 2. The objective of this study is to pinpoint various parameters that, when appropriately addressed during the planning stage, can contribute to successful project delivery. Key Words: Tread; operation; management.