You will find considerable differences in the approach taken at Australian universities from what you are accustomed to in India. Silent note-taking is everywhere understood to be the least effective way of learning, but active learning requires resources that are not available everywhere. Australian students, though, cannot sit through lectures and then study up for exams at end of term.
They are expected to enter into a give and take of thought and discussion throughout their coursework. Frequent exams are only a small part of the assessment. The focus is on research projects, hands-on laboratory and tutorial work and class discussion.
This is the case in all disciplines, from IT, engineering and medicine through business and the humanities. Such methods require a high teacher-student ratio, ready access to excellent laboratories and libraries and other elements which many Indian universities simply cannot provide.
Australian universities are populated both by faculty and students from every corner of the world who bring to the tasks of teaching, learning and researching is a significant advantage.
Indians are notably gifted in oral communication skills and invariably thrive in this environment, taking away from their student experience a considerably greater breadth of knowledge than they might acquire studying at home.
Student visas permit foreign students to work up to 20 hours per week during term time and full time during semester breaks. Many students find that their academic course load is not unduly burdensome and they are easily able to work part time and defray in whole or in part their living expenses.
Such part time employment might be purely for the sake of earning money, but it could also be in their chosen professional field, but could also be on-the-job training in their chosen profession. Some courses, in fact, require such practical work experience for graduation.