Amavasya in Krishna Paksha of Bhadrapada month is known as Bhadrapada Amavasya. It is also known by the name of Bhadi or Bhadon Amavasya. This day holds great importance in Hindu faith, mainly for offering oblation to ancestors, charity and to get rid of Kaal-Sarp Dosha. As Bhadrapada month is devoted to God Krishna, so this also raise the significance of Bhadrapada Amavasya. Kusha (green grass) is considered to be extremely fruitful, so, it is collected on this day to do spiritual activities, Shraadh, etc.
Bhadrapada Amavasya is extremely important for the purpose of bath, charity and Pitru Tarpan (oblation). If this Amavasya falls on Monday and Solar Eclipse is also on the same day, this increases its significance tenfold.
The spiritual rituals perform on this day are as follows:
As Kusha (green grass) is collected to do spiritual activities, therefore, this Amavasya is known by the name of Kusha Grahani Amavasya. In pristine spiritual scriptures, it is named as Kushotpatini Amavasya. Since Kusha is used for performing rituals on Amavasya, therefore, if Bhadrapada Amavasya falls on Monday, one can use the same Kusha for up to twelve years.
Bhadrapada Amavasya is also known by the name of Pithori Amavasya. On this day, Goddess Durga is prayers. As per pristine beliefs, Maa Parvati told the significance of Pithori Amavasya Vrat to Indrani on this day. So, married women worship Goddess Durga and do this fast for getting blessed with a child, or for the good health and life of their children.