Based on an RTI (Right to Information) reply, several factors contribute to the delay in passenger trains. Below are some of the key factors: 1. Infrastructure Issues: Inadequate maintenance, frequent breakdowns, and lack of modernization can lead to delays. Issues such as track defects, signal failures, or bridge repairs can disrupt train schedules. 2. Congestion: Rail networks that are heavily congested due to high passenger and freight traffic can result in delays. Limited capacity and the inability to manage the volume efficiently can lead to train delays. 3. Operational Disruptions: Unplanned maintenance work, unpredictable weather conditions, accidents, or incidents like derailments can disrupt train operations and cause delays. 4. Freight Trains Priority: The preference given to freight trains over passenger trains can lead to delays. Freight trains often have a crucial role in the transportation of goods, so passenger trains may be required to wait for them. 5. Technical Issues: Locomotive failures, coach defects, or electrical system issues can result in the delay of passenger trains until the problem is resolved. 6. Crossing Delays: Delays can also occur due to long waits at railway crossings while trains pass by. This can be particularly relevant in areas with a significant number of level crossings. It is important to note that these factors may vary based on the specific region or railway network.