Fishermen and fishing community (koli) in Maharashtra celebrates the Nariyal Purnima or the Coconut Festival in a jubilant manner. On the day of Narial Festival, fishermen of Maharashtra worship Samudra (Sea God) and Varuna Deva (Rain God). Coconuts are offered to the Sea God. After the Puja, fishing is started. They perform the pooja to the Sea God to protect them from natural calamities. Narali Poornima marks gradual retreat of the monsoon winds. This helps the fishermen to venture into the sea.
Coconut is offered because it is considered to be the purest offering to gods. The water and the kernel inside the coconut are considered to be unadulterated. Some believe that Nariyal or coconut has three eyes therefore coconut is considered as three eyed God, Lord Shiva. That is the reason why coconut is used as the offering to Sea God and Rain God.
There is also another legend associated with the Narial Purnima it suggests the ritual is a sort of thanksgiving to Lord Varuna for holding aloft the bridge that enabled Lord Ram to go to Lanka in epic Ramayan.