Nagula Chavithi Nagula Chavithi Nagula means 'of the snakes' and Chavithi means the fourth day after every New Moon or Full Moon day. Celebrated on the fourth day after Deepavali, which falls on a New Moon day, this festival witnesses the worship of serpents. The worship is done with great devotion and religious fervor. The women and the children, dressed in their festive best, observe a fast on this day and worship the snake God.
Milk is offered at the snake hills, the hills being in great demand for that day.
The ritual is, at times, completed by some, in their homes by placing an idol or a picture of a snake. This festival is celebrated twice during the year, in the months of Karthika and Sravanam. It would have imbibed the whole world. It was then that Lord Siva swallowed it and retained it in His throat. However, a few drops fell out and to ward off the evil effects people worship the Cobra, the king of snakes, to pacify the brood and protect themselves from their deadly poison.