Why Does Bengal Worship Goddess Kali on Diwali Night Instead of Celebrating Only with Diyas?

On the night when many Indian households light diyas and perform Lakshmi Puja, several parts of West Bengal turn their attention to another form of the divine: Goddess Kali. Known as Kali Puja or Shyama Puja, the observance takes place on the new-moon night of the Bengali month of Kartik, coinciding with Diwali in 2026.

This year, Kali Puja falls on Sunday, November 8, 2026, according to the West Bengal government’s SAHAJ Puja Permission Portal.

Why is Kali worshipped on Diwali?

Goddess Kali is widely associated with the destruction of evil, the protection of devotees and the power that restores balance. In Bengal, the new-moon night is considered an important occasion for her worship. Devotees visit decorated pandals and temples, offer prayers and take part in rituals that continue late into the night.

The celebration has its own identity. While Lakshmi Puja is central to Diwali for many Hindu households in other parts of India, Kali Puja is a major focus for many Bengali Hindu communities. This does not mean that every household in Bengal observes the festival in exactly the same way; family and local traditions differ.

What happens during Kali Puja?

Kali Puja pandals are decorated with lights, flowers and elaborate displays. Devotees gather for the evening and night-time worship, and many neighbourhoods organise community celebrations. Offerings and ritual practices vary between temples, families and local traditions.

The festival also comes within a wider period of Bengali celebrations. Kali Puja is followed by other observances, including Jagaddhatri Puja in parts of the state.

A different expression of the festival of lights

Diwali is not celebrated identically across India. Bengal’s Kali Puja is one of the clearest examples of how a shared festival date can carry distinct regional meanings. For visitors, the illuminated pandals and night-time worship offer a chance to understand a different side of the season. For devotees, the night is first and foremost an occasion of prayer and devotion to Goddess Kali.