Amavasya is a no moon day or new moon day and is also famous as Amavasi. As per Hindu calendar, it occurs when the moon is not visible in the sky and falls on the first night in the first quarter of the lunar month. This day has great importance for Hindus, as on this day only the believers make benefaction to their departed forefathers. This creates confusion in the mind of people to consider Amavasya as favorable or unfavorable. Shukla Paksha is the name given to the fortnight that starts with Amavasya. Some auspicious Amavasyas that have a great significance in the life of devotees are Mauni Amavasya falling in the Hindu Magh month (January - February) and the other one is Mahalya Amavasya occurring in the month of Ashwayuja (September - October). In Tamil Nadu, Amavasi falling in the month of Aadi is considered to be very important and propitious.
| 16 January (Tuesday) | Magha Amavasya | Darsha Amavasya, Magha Amavasya, Mauni Amavas |
| 17 January (Wednesday) | Magha Amavasya | Darsha Amavasya, Magha Amavasya, Mauni Amavas |
| 15 February (Thursday) | Phalguna Amavasya | Darsha Amavasya, Phalguna Amavasya |
| 17 March (Saturday) | Chaitra Amavasya | Darsha Amavasya, Chaitra Amavasya |
| 16 April (Monday) | Vaishakha Amavasya | Darsha Amavasya, Vaishakha Amavasya |
| 15 May (Tuesday) | Jyeshtha Amavasya | Darsha Bhavuka Amavasya, Jyeshtha Amavasya, Vat Savitri Vrat, Shani Jayanti |
| 13 June (Wednesday) | Jyeshtha Amavasya | Darsha Bhavuka Amavasya, Jyeshtha Amavasya, Vat Savitri Vrat, Shani Jayanti |
| 13 July (Friday) | Ashadha Amavasya | Darsha Amavasya, Ashadha Amavasya |
| 11 August (Saturday) | Shravana Amavasya | Darsha Amavasya, Shravana Amavasya |
| 09 September (Sunday) | Bhadrapada Amavasya | Darsha Amavasya, Bhadrapada Amavasya, Pithori Amavasya, Somvati Amavas |
| 09 October (Tuesday) | Ashwin Amavasya | Ashwin Amavasya, Sarvapitri Darsha Amavasya, Sarva Pitru Amavasya |
| 07 November (Wednesday) | Kartik Amavasya | Darsha Amavasya, Kartik Amavasya, Diwali, Lakshmi Puja, Diwali Puja, Diwali Devpuja, Chopda Puja, Kedar Gauri Vrat, Sharda Puja, Bengal Kali Puja |
| 07 December (Friday) | Margashirsha Amavasya | Darsha Amavasya, Margashirsha Amavasya |
Paush Purnima
Amavasya has a great significance, as it is fortunate to start any good work on this day. This day is very special to worship departed forefathers and provide help to poor. This helps the devotees to clear out their sins. Keeping fast and taking dip in holy water is also observed on Amavasya.
