Diwali or Deepavali is a "Festival of lights"(deep
= light and avali = a row i.e., Row of Lights). This festival comes exactly
after 20 days from dussehra ends. And also in between mid-October and
mid-November.
Apart from India, it is official holiday for country Like
Nepal, Sri Lanka, Myanmar, Mauritius, Guyana, Trinidad & Tobago, Malaysia,
Singapore and Fiji.
In Hindus, Deepavali is celebrated due to reasons like
Marriage of Laxmi with Lord Vishnu and Return of Lord Rama along with Sita Mata
and Lakshman from his fourteen year long exile and vanquishing of the demon
Ravana, celebrated as Ramnavami/Dussehra. In Jainism, Diwali marks the
attainment of moksha or nivana by mahavira in 527 BC.
One More reason to celebrate diwali is that, In Rural India
it marked the End of harvest season, that means money from sale of produce
which makes villagers to afford/buy new cloths and other things needed for the
home.
Basically, its five days festival:
First Day of which called
"Dhanteras", Dhan means Wealth and Teras means 13th day as per Hindu
Calender. It is celebrated on the thirteenth lunar day of krishna paksha in
Hindu calendar month of Ashwin.
On Dhanteras, Hindus consider it very fortunate to purchase
gold or silver or at least one or more utensils as it believed that it is sign
of Good Luck.
It is also Known as 'Yamadeepdaan' and the house ladies
light eastern lamps or deep which kept burning throughout the night glorifing
Yama, The GOD of Death.