| March 1 | Zero Discrimination Day: Promotes dignity for all. Symbol is a butterfly. Initiated by the UN in 2014. |
| March 1 | World Civil Defence Day: Highlights the importance of disaster preparedness. Established by ICDO in 1990. |
| March 1 | Self-Injury Awareness Day: Raises awareness about self-harm and creates supportive environments. |
| March 3 | World Wildlife Day: Focuses on marine species and biodiversity conservation. Theme 2023: "Recovering key species for ecosystem restoration." |
| March 3 | World Hearing Day: Promotes hearing health and prevention of deafness. |
| March 4 | National Safety Day (India): Raises awareness about safety issues. |
| March 4 | Employee Appreciation Day: Recognizes the contributions of employees. |
| March 8 | International Women's Day: Celebrates women's achievements and advocates for gender equality. Colors: purple, green, and white. |
| March 8 | Mahashivratri: Celebrates the union of Lord Shiva and Goddess Parvati. |
| March 10 | CISF Raising Day: Marks the establishment of the Central Industrial Security Force in 1969. |
| March 12 | Ramakrishna Jayanti: Commemorates the birth anniversary of Ramakrishna. |
| March 12 | Mauritius Day: Celebrates independence from Britain in 1968 and becoming a republic in 1992. |
| March 13 | No Smoking Day: Raises awareness about the health risks of smoking. Observed on the second Wednesday of March. |
| March 14 | Pi Day: Celebrates the mathematical constant Pi (≈ 3.14). |
| March 14 | International Day of Action for Rivers: Advocates for river conservation. |
| March 15 | World Consumer Rights Day: Promotes consumer rights and protection. |
| March 16 | National Vaccination Day: Raises awareness about the importance of vaccination. |
| March 17 | World Sleep Day: Highlights the importance of sleep for health. Theme: "Sleep is essential for Health." |
| March 18 | Ordnance Factories Day (India): Celebrates the contributions of ordnance factories to national defense. |
| March 20 | International Day of Happiness: Recognizes the importance of happiness in global well-being. Established by the UN in 2013. |
| March 20 | World Sparrow Day: Promotes the conservation of sparrows. |
| March 20 | World Oral Health Day: Raises awareness about oral health. Theme 2023: "Be Proud of Your Mouth." |
| March 21 | World Forestry Day: Highlights the importance of forests in ecological balance. |
| March 21 | World Down Syndrome Day: Raises awareness about Down syndrome. Established by the UN in 2011. |
| March 21 | World Poetry Day: Celebrates the power of poetry. Established by UNESCO in 1999. |
| March 22 | Ugadi: Marks the New Year in Andhra Pradesh. |
| March 22 | Gudi Padwa: Celebrates the New Year in Maharashtra and Goa. |
| March 22 | Bihar Diwas: Commemorates the formation of Bihar in 1912. |
| March 22 | World Water Day: Promotes sustainable management of water resources. First celebrated in 1993. |
| March 23 | World Meteorological Day: Focuses on weather and climate issues. Established in 1950. |
| March 23 | Martyr's Day (Shaheed Diwas): Honors Bhagat Singh, Shivaram Rajguru, and Sukhdev Thapar, who were hanged on this day in 1931. |
| March 24 | World Tuberculosis (TB) Day: Commemorates the discovery of the TB bacterium by Dr. Robert Koch in 1882. |
| March 25 | International Day of the Unborn Child: Stands against abortion. |
| March 25 | International Day of Solidarity with Detained and Missing Staff Members: Honors Alec Collett, a UN journalist. |
| March 25 | Holi: Celebrates the love between Radha and Krishna and the victory of good over evil. |
| March 26 | Purple Day of Epilepsy: Raises awareness about epilepsy. |
| March 27 | World Theatre Day: Celebrates the significance of theatre. Established in 1962. |
| March 29 | World Piano Day: Promotes musical creativity and the joy of playing the piano. |
| March 30 | Rajasthan Day: Commemorates the formation of Rajasthan in 1949. |
| March 31 | Eiffel Tower Day: Marks the unveiling of the Eiffel Tower in 1889. |
