Australia

Hi
You may check whether there is demand on the course you are taking or not and then decide.
http://www.sbs.com.au/yourlanguage/hindi/en/article/2016/05/17/want-migrate-australia-2016-17-skilled-occupations-list-sol-announced

Nursing is most suitable option for you to get job and citizenship in Australia and Other countries. Nursing profession in UK,US, Australia etc. are highly paid and reputed. So please join for Professional Graduation (B.Sc- Nursing) in Nursing. It will take 4 years to complete the course. There may be 1 year clinical internship in some universities. But it will considered as One year experience which is compulsory for getting job in foreign countries. You need to clear IELTS also.
All the Best

yes u can just go ahead

yes u can.just go ahead

u can do MBBS or bds or u can also do bpt it has much value in australia

Check the latest list here and decide what course you would like to go for.
http://www.sbs.com.au/yourlanguage/hindi/en/article/2016/05/17/want-migrate-australia-2016-17-skilled-occupations-list-sol-announced

The average cost per year of study in Australia for international students is AU$42,093 (~US$32,950). This breaks down to AU$24,081 (US$18,850) for fees and AU$18,012(US$14,100) for living.

It depends on the skill shortage list which they release every year. Check here and decide.
http://www.employment.gov.au/national-state-and-territory-skill-shortage-information

For what course are you looking for and with what budget?