Installed, calibrated, and maintained field instruments including pressure, temperature, flow, and level transmitters used in production facilities. Performed routine and breakdown maintenance of control valves, actuators, positioners, and solenoid valves. Supported operation and maintenance of PLC / DCS-based control systems, including loop checking and I/O testing. Maintained and calibrated process analyzers such as gas analyzers, H₂S detectors, oil-in-water analyzers, and flow computers. Ensured proper functioning of ESD, PSD, and safety interlock systems in compliance with plant safety standards. Worked on instrument air systems, tubing, fittings, manifolds, and impulse lines. Assisted during plant start-up, shutdown, and commissioning activities. Troubleshot instrumentation issues in separators, heaters, compressors, pumps, and storage tanks. Maintained calibration records, loop diagrams, P&IDs, and maintenance logs as per company and regulatory requirements. Coordinated with operations, electrical, and mechanical teams to ensure safe and efficient production operations. Monitoring and calibration of custody transfer and multiphase flow meters. Maintenance of gas detection and fire & gas (F&G) systems in hazardous areas. Instrumentation support for refinery units, pipelines, storage tanks, and loading/unloading systems. Calibration of flow meters, tank gauging systems, and analyzers for process control and custody transfer. Integration support with central DCS and plant-wide control systems.

Mines Vocational Training (MVT) – Safety practices, hazard identification, emergency response, and statutory compliance at ONGC Fire Fighting Training – Fire prevention, extinguisher operation, and emergency handling at ONGC