Rishabh Rajan completed a vocational training program at Indian Oil Corporation's Barauni Refinery in Bihar, India. He thanks the refinery managers and staff for their guidance and support during the program. The report provides an overview of Indian Oil Corporation and details of the Barauni Refinery. It describes the refinery's process control and monitoring systems, including distributed control systems, programmable logic controllers, vibration analysis and plant resource management software. Field instruments for measuring pressure, temperature, magnetic flow, and level are also outlined. The training enhanced Rishabh's practical knowledge of industrial processes and challenges.