2025-03-012025-03-012024https://drive.google.com/file/d/1KGYlgyuINDebR4sk3UhkyN2xQjg1MGLP/view?usp=sharinghttp://ssm.ndl.gov.in/handle/123456789/1037DSE-B-I (Digital Electronics) DSE-B-2 (Nuclear and Particle Physics)