Hindi is the most commonly spoken Indian language in Australia, with over 250,000 speakers. It is followed by Punjabi, with over 100,000 speakers, and Tamil and Telugu, with over 50,000 speakers each.

The first Indian immigrants arrived in Australia in the 19th century, mostly from the Punjab region of India. They were brought to Australia to work as laborers on sugar plantations and in gold mines.

Speakers of Indian languages in Australia face a number of challenges, including discrimination, lack of access to language services, and limited opportunities for education and employment.

The Federation of Indian Language Associations of Australia (FILAA) is the peak body representing the interests of Indian language speakers in Australia. It was established in 1992 and has over 50 member organizations.

The future of Indian languages in Australia is difficult to predict. Some experts believe that they will continue to be spoken by a small number of people, while others believe that they will become more widely spoken as the Indian diaspora grows. It is also possible that they will eventually disappear as the Indian diaspora assimilates into Australian society.