India, Oct. 15 -- HSBC Australia recently celebrated Diwali with a party at a popular Indian restaurant in Sydney. Employees of the bank were filmed dancing to Bollywood songs during the celebration. Many of them came dressed in traditional Indian lehengas and sarees in honour of the occasion.

Diwali is one of the biggest festivals of India. In recent years, it has gained international recognition - in fact, the US state of California has even made it a state holiday. It is now celebrated in many parts of the world that have sizable Indian diaspora populations. (Also read: US mayors dance their hearts out to Salman Khan's 'Chunari Chunari' at Diwali event in North Carolina. Watch)

This year, Diwali will fall on October 20.

Ahead of the...