DRDO DIHAR JRF and RA Recruitment 2025. DEFENCE INSTITUTE OF HIGH ALTITUDE RESEARCH (DIHAR) DEFENCE RESEARCH & DEVELOPMENT ORGANISATION (DRDO) WALK-IN INTERVIEW FOR JUNIOR RESEARCH FELLOWS (JRF) & RESEARCH ASSOCIATE (RA) POSITIONS Defence Institute of High Altitude Research (DIHAR) is a frontier institute of Defence Research & Development Defence Institute of High Altitude Research (DIHAR)