Insurance underwriters decide whether to accept, decline, or modify insurance applications across life, health, and general lines — and at what premium. In India the role is IRDAI-regulated: every retail and commercial policy issued by LIC, HDFC Life, ICICI Prudential, Max Life, Star Health, ICICI Lombard, Bajaj Allianz, and GIC Re flows through underwriting. Day to day means reading proposal forms, ordering medicals, applying mortality tables, pricing commercial risks (property, marine, liability, aviation), analysing reinsurance treaties, and flagging fraud indicators — all within delegated authority limits. The career splits into life (mortality / morbidity focus), health (claims frequency, comorbidity), and general / commercial lines (engineering, marine, liability), with a specialist track into reinsurance at GIC Re, Munich Re India, or Swiss Re India.