Heavy Water Board (Central Office),
Mumbai will observe the following holidays during the year 2025
| Sr. No. | Festival/Occasion | Date | Day of Week |
|---|---|---|---|
| 1. | Republic Day | 26.01.2025 | Sunday |
| 2. | Mahashivratri | 26.02.2025 | Wednesday |
| 3. | Holi | 14.03.2025 | Friday |
| 4. | Id-ul-Fitr | 31.03.2025 | Monday |
| 5. | Mahavir Jayanti; | 10.04.2025 | Thursday |
| 6. | Good Friday | 18.04.2025 | Friday |
| 7. | Buddha Purnima | 12.05.2025 | Monday |
| 8. | Id-ul Zuha (Bakrid) | 07.06.2025* | Saturday |
| 9. | Muharram* | 06.07.2025 | Sunday |
| 10. | Independence Day | 15.08.2025 | Friday |
| 11. | Ganesh Chaturthi | 27.08.2025 | Wednesday |
| 12. | Id-E—Milad (Birthday of Prophet Mohammad) | 05.09.2025* | Friday |
| 13. | Mahatma Gandhi's Birthday | 02.10.2025 | Thursday |
| 14. | Dussehra | 02.10.2025 | Thursday |
| 15. | Diwali (Deepavali) | 20.10.2025 | Monday |
| 16. | Guru Nanak’s Birthday | 05.11.2025 | Wednesday |
| 17. | Christmas Day | 25.12.2025 | Thursday |
*Based on holiday declared by Central Government and would be change as per decision of Government of Maharashtra State.