Which of the following festivals is held on a new moon day?

Kali Puja

The correct answer is Option (2) - Kali Puja

The festival held on a new moon day is Kali Puja.

Kali Puja, also known as Shyama Puja or Mahanisha Puja, is a Hindu festival dedicated to the worship of Goddess Kali, who is often associated with power, destruction of evil forces, and protection. This festival typically falls on the new moon day (Amavasya) of the Hindu lunar month of Kartik, which usually occurs in October or November in the Gregorian calendar. During Kali Puja, devotees offer prayers, perform rituals, and seek blessings from Goddess Kali for protection and prosperity.