The top occupations for Indian immigrants in Australia can vary over time and depend on the demand in the Australian job market. However, historically, Indian immigrants have found opportunities in the following fields:

1. Information Technology (IT) Professionals: India has a strong IT sector, and many Indian immigrants find jobs in Australia’s IT industry, including roles such as software engineers, developers, and IT consultants.

2. Healthcare Professionals: Doctors, nurses, and other healthcare professionals from India are often in demand in Australia. They might need to undergo certification processes to practice in Australia, but the demand for skilled healthcare workers is high.

3. Accountants and Finance Professionals: Indian immigrants with accounting or finance backgrounds often find opportunities in Australia. Roles such as accountants, auditors, and financial analysts are common.

4. Engineering Professionals: Engineers, especially those with specializations in fields like civil, mechanical, electrical, and computer engineering, are sought after in Australia. Engineers from India often find employment opportunities in the country.

5. Education and Teaching: Indian immigrants with teaching qualifications and experience might find opportunities in Australian schools and educational institutions. There is a demand for skilled teachers in various subjects.

Please note that the demand for specific occupations can change, and it’s essential for immigrants to stay updated with the latest information from Australian immigration authorities and labor market reports. Additionally, having relevant Australian certifications and work experience can significantly enhance the prospects of finding a job in these fields. For the most current and specific information, it’s advisable to refer to official Australian government websites or consult with migration experts.