>The 'Australians' in India are citizens of opportunity, who were born in India and retain their citizenship there, and the sympathy for them from actual Australians is zero.

India doesn't recognize dual citizenship, while Australia might not require you to give up your prior citizenship, India will if you want to become Australian. [0] You can become an "Overseas Citizen of India" but this is just a permanent visa that can be revoked at any time and does not confer voting rights. [1]

[0] https://india.embassy.gov.au/ndli/dualnlty.htm

[1] https://www.theguardian.com/world/2019/nov/08/india-strips-c...