| Important National and International Days in January | |
| Jan 1 | Army Medical Corps Establishment Day |
| Jan 8 | African National Congress Foundation Day |
| Jan 10 | World Laughter Day |
| Jan 9 | Pravasi Bharatiya Divas |
| Jan 11 | Death anniversary of Lal Bahadur Shastri |
| Jan 12 | National youth Day (Birth Day of Swami Vivekananda) |
| Jan 15 | Army Day |
| Jan 23 | Netaji Subhash Chandra Bose’s birth anniversary |
| Jan 25 | International Customs Duty Day, India Tourism Day, Indian Voter Day |
| Jan 26 | Republic Day |
| Jan 28 | Birth anniversary of Lala Lajpat Rai |
| Jan 30 | (Martyr’s day) Mahatma Gandhi’s Martyrdom Day; World Leprosy Eradication Day |
| Jan 31 | World Leprosy Eradication Day |
| Important National and International Days in February | |
| Feb 2 | World Wetlands Day |
| Feb 4 | National Day of Sri Lanka |
| Feb 5 | Kashmir Day (Organised by Pakistan) |
| Feb 13 | Sarojini Naidu’s Birth Anniversary |
| Feb 14 | St. Valentine’s Day |
| Feb 24 | Central Excise Day |
| Feb 28 | National Science Day |
| Important National and International Days in March | |
| Mar 3 | National Defence Day |
| Mar 4 | National Security Day |
| Mar 8 | International Women’s Day |
| Mar 9 | CISF Raising Day |
| Mar 12 | Mauritius Day; Central Industrial Security Force Day |
| Mar 15 | World Consumer Day |
| Mar 16 | National Vaccination Day |
| Mar 21 | World Forestry Day |
| Mar 22 | World Day of Water |
| Mar 23 | World Meteorological Day |
| Mar 24 | World TB Day |
| Mar 26 | Bangladesh Liberation Day |
| Important National and International Days in April | |
| April 1 | Orissa Day |
| April 5 | National Maritime Day |
| April 7 | World Health Day |
| April 13 | Jallianwala Bagh Massacre Day (1919) |
| April 14 | B.R. Ambedkar Remembrance Day |
| April 18 | World Heritage Day |
| April 22 | World Earth Day |
| April 23 | World Books Day |
| Important National and International Days in May | |
| May 1 | International Labour Day, Maharashtra Day |
| May 3 | International Energy Day |
| May 8 | International Red Cross Day (It is celebrated to commemorate the birth anniversary of the founder of the Red Cross Organization Jean Henry Dunant) |
| May 11 | National Technology Day |
| May 15 | International Family Day |
| May 17 | World Telecom Day |
| May 24 | Commonwealth Day |
| May 31 | World No Tobacco Day |