Basanti Puja, also known as Vasant Durga Puja, is observed during the Chaitra Navratri. Basanti Puja 2015 date is from March 25 and will end on April 28. This pujas is based on the belief that Durga Puja was originally held during Spring season or Basant. It was Lord Ram who changed worship period of Goddess Durga from Chaitra to Ashwin (October – November).
This puja is still popular with Goddess Durga worshippers. Elaborate rituals are missing during the period. But people keep fast on the Ashtami day in some regions.
The Durga Puja in Ashwin month (October – November) is also known as Akal Bodhon, or untimely invocation, as Lord Ram had invoked her during the Ashwin month.