Basanti Durga Puja – is celebrated in Spring (Basant). This puja is held in the month of Chaitra in Bengali calendar. However, its beleived its the original celebration of the Durgapuja celebrated in other parts of India.
It is known fact according to mythology that King Surath performed Durga Puja in Spring after Sage Medha instructed him. Markanda Puran says that King Surath lost his kingdom and was hiding in the forests when he met Samadhi Vaishya who also had lost kingdom. In the forest, they met Medha Muni who told them to perform Basanti Durga Puja to get back their kingdoms. King Surath and Samadhi Vaishya, performed Basanti Puja and got back their kingdoms. This started the ritual of performing Basanti Durga in Vasant as the name suggests
The difference between the two Durga Pujas- Basanti Puja and Durga Puja in Autumn performed by Lord Rama- lie in their origin and time of celebration, rituals remain the same. Durga Puja is said to have first performed by Lord Rama in Autumn. At that time, Durga Puja was celebrated in Spring after started by King Surath many years back. Lord Rama performed ‘Akalbodhan’ untimely awakening to seek Goddess blessings for defeating Ravana. The Popularity of Sharadiya Puja of lord Rama, is more according to the present scenario. Basanti Puja, however, is still popular in many Bengali households maintaining all the rituals of Durga Puja.