| List of Important Days in April | |
| 1 April | Orissa Day, Prevention of Blindness week |
| 2 April | World Autism Awareness Day |
| 4 April | International Day for Mine Awareness |
| 5 April | National Maritime Day |
| 7 April | World Health Day |
| 10 April | World Homeopathy Day |
| 11 April | National Safe Motherhood Day, National Pet Day |
| 13 April | Jallianwallah Bagh Massacre Day (1919) |
| 17 April | World Haemophilia Day |
| 18 April | World Heritage Day |
| 21 April | National Civil Service Day, Secretaries’s Day |
| 22 April | World Earth Day |
| 23 April | World Book and Copyright Day |
| 24 April | National Panchayati Day |
| 25 April | World Malaria Day |
| 26 April | World Intellectual Property Day |
| 28 April | World Day for Safety and Health at Work, World Veterinary Day |
