15,000 people will come together at Bhaktivedanta Manor Hare Krishna temple near Watford to celebrate Diwali, the Festival of Lights on Sunday 2nd November.
Highlights of the festival include colourful dances, plays, bullock cart rides and free vegetarian meals for everyone.
The day will culminate at 7.30pm ,in one of the most spectacular Diwali firework displays in the Greater London area.
The central theme of Diwali is the victory of good over evil and light over darkness - from the ancient Indian epic "Ramayana", when Lord Rama returns in victory after slaying the demon Ravana.
"Diwali is a time for family and for prayers, sacrifice and charity," said Kripamoya das. "Millions of Hindus around the world worship Lord Rama on this day by lighting lamps and sharing a sumptuous vegetarian feast with friends and neighbours."