Correa said because of the limited number of tickets, those who decided to buy them at the door may be disappointed.
He's urging people to secure their tickets at $20 per person quickly to avoid disappointment.
Around 60 tickets were sold as at mid-afternoon on Tuesday.
"We can track and trace people with ticket sales through eventfinda. The $20 doesn't cover our cost. We're doing it as a charity," he said.
Entertainment would consist of a fusion of western, Bollywood, and Hollywood dances plus there would be plenty of fun competitions and spot prizes, he said.
"We've designed the programme with everyone in Diwali mood. Now the weather is warming up and this is the time to brighten our lives after a difficult year with Covid hovering around."
Doors open at 11.30am and the alcohol-free event will run noon to 3pm.
Diwali, otherwise known as Deepavali or the Festival of Lights, is one of the most important events in the Indian community calendar and is an ancient festival celebrated in autumn in the northern hemisphere or spring in the southern hemisphere.
The festival spiritually signifies the victory of light over darkness or good over evil, knowledge over ignorance, and hope over despair.
Celebrations include millions of lights shining around temples and other buildings in the communities and countries where it is observed.
