Durga Puja is the biggest festival in Bengal. This is also known as Dussehra and Navaratri in other parts of India. Durga is the Goddess of divine power against all evils. The story goes that Mahisasur, the Buffalo Demon, through years of praying, received blessing from Lord Brahma, that no power can kill him which means he is invincible. But once gaining this power he started ravaging the whole world and killing people. And finally he wanted to uproot the Gods too. The Gods, in dismay, combined their powers to create a beautiful maiden, and each placed his or her most potent weapon in one of her ten hands riding a lion. Her return in each year in the Bengali month of Aswin (September-October).
The traditional image of the Bengali Durga puja follows the iconographic injunctions of the Shastras. The tableau of Durga with her four children - Kartik, Ganesh, Saraswati and Lakshmi, representing respectively the Protector, the Initiator of the puja, Knowledge and the Provider - signifies the complete manifestation of the goddess. The festival starts with Mahalaya(মহালয়া), the first phase of the waxing moon in Aswin. Thousands offer prayers to their ancestors at the city's river banks (ghats), a ritual called Tarpan. A special pre-dawn program of readings from the Chandi and Aagamani songs welcoming the goddess are relayed by All-India Radio. This traditional program, conceived by Birendrakrishna Bhadra, has become an institution: a chorus of protests led to its restoration after a change was attempted one year. The inauguration starts on Mahashasthi. The main puja is for three days - Mahasaptami, Mahaastami, Mahanavami. The puja rituals are long and very detailed and complicated. Three days of Mantras and Shlokas and Arati and offerings - needs an expert priest to do this kind of Puja.
After the three days of Puja, in Dashami , in the last day, a tearful farewell is offered to the Goddess. At the beginning of Durga Puja in Kolkata, people get Bonus and extra money in their offices to meet many demands for new clothes and furbishing for the home at the time of Puja. The festive mood builds up as Dhakis (drummers) from the countryside starts gathering near the city. They beat feathered drums to attract the attention of local Puja organizers.
Durga Puja celebrations are therefore being held in the New Delhi Kali Bari compound from 1935 onwards. This celebrations present a unique occasion of solemnity, mirth and grandeur as thousands of people assemble here in prayerful mood with offerings to the Almighty Mother. A special permanent Puja Mandap or Vedi (Pavilion) was constructed in the year 1958. The Puja Mandap gives added splendor to these annual celebrations A Large Number of Non-Bengali Hindu take part in these celebrations.