Australia

You can check payscale.com as your salary package will depend on your skills, qualifications, the company and of course your job profile. It is difficult to give a number so check the website given.

At both countries where Engineering degrees are 4 yrs duration, your minimum spend is INR 20 lakhs per annum. USA has a host of entrance exams like the SATs and the ACTs in addition to the IELTS/TOEFL. For Australia IELTS alone is sufficient. Now you decide. Hope this helps. Thanks.

USA by all means. Never Australia although it has good universities. But are quite expensive. However Australia does not have GRE requirement. In that case, I would strongly suggest Ireland to you. Hope this helps. Thanks.

Minimum of INR 20 lakhs per year, every year for two years. Hope this helps. Thanks.

I do not think you must do an MIM or an MBA. You should choose an M.Com with a CPA accreditation in Australia or an M.Sc in Actuarial Science in the UK. You should consider Ireland instead of Canada. Hope this helps. Thanks.

It is definitely the USA without a doubt. Australia falls short. I studied in Australia myself. Hope this helps. Thanks.

Bio Informatics in a next generation field and slowly you will have multiple options across the globe.

Its very hard for freshers, Australian employers prefers experienced people. That said international students are eligible to stay and work for 2 to 3 years after course completion.Here the course duration is very important, it is good if you can pursue a course lasting for more than a year. Build your skills, work hard on your academics, establish a network, make friends and be confident.Australia on the whole has plenty of opportunities.
Regards

Its very hard for freshers, Australian employers prefers experienced people. That said international students are eligible to stay and work for 2 to 3 years after course completion.Here the course duration is very important, it is good if you can pursue a course lasting for more than a year. Build your skills, work hard on your academics, establish a network, make friends and be confident.Australia on the whole has plenty of opportunities.
Regards