Ergonomics focuses on studying how people interact with their work environments to minimize stress, prevent injuries, and improve performance by designing tasks, spaces, and equipment that suits users’ physical abilities. This improves overall health and well-being. Rapid technological advancements without considering local needs often result in failure and worker alienation. About 77 years after independence, India has seen increased awareness and research in ergonomics, expanding beyond industrial applications to health, consumer products, defense, and agriculture. However, a major challenge remains: the absence of a categorized anthropometric database, which limits the development of products and facilities suited to the diverse needs of India’s population. There is a pressing need for comprehensive research into the physical, physiological, cognitive, and psychological characteristics of India’s varied ethnic groups. Ergonomics can help evaluate both indigenous and imported technologies to ensure their effective use in India. This highlights the necessity for a strong Indian knowledge base, including standards, recommendations, and procedures for occupational health and safety. Given India’s diverse factors like climate, demographics, and infrastructure, customized research across sectors is essential. DIPAS, as a leader in military ergonomics research, focuses on enhancing soldier performance and health, applying cognitive and physical ergonomics to improve systems and optimize human–machine–environment interactions. Armed forces personnel operate in diverse environments, facing both physical and mental challenges. Air force operations involve G-forces, rapid maneuvers, and communication, while naval operations include long-term sea activities, sensory changes, and seasickness. Both settings contribute to high cognitive stress due to environmental factors and constant mental demands. Physical ergonomics is crucial in designing human–machine interfaces (HMIs) to enhance user comfort, performance, and safety. It involves tailoring designs based on anthropometric data, ensuring that controls, displays, and seating accommodate users’ body dimensions. Ergonomic considerations minimize physical strain, reduce repetitive injuries, and optimize task efficiency by streamlining workflows. Well-designed HMIs also improve safety by ensuring users can easily interact with machines. Additionally, accessibility for diverse users, including those with disabilities, is considered. Critical elements should be within optimal visual fields, and designs customized to users’ needs increase satisfaction by reducing frustration and enhancing the overall experience. Human biomechanics applies principles of mechanics to study the human body’s response to forces, combining engineering with physiology and anatomy. It includes kinematics (movement) and kinetics (causes of movement). In defense, biomechanics aids in understanding musculoskeletal systems, muscle activation, and optimizing performance using tools like force platforms and electromyography.