IELTS

None. IELTS in UK is also required for visa purposes. They don't require any other tests as such unless you want to study law or medicine. IELTS is the only test and mandatory.

IELTS is more popular. TOEFL is widely preferred in USA.

For B.Sc Nursing courses, you need IELTS 6.5 and in each component minimum 6 band is required. Fees will be around INR 8 Lacs to INR 9 Lacs per year in good universities.

You have the required marks for admission and also required IELTS marks, if you apply directly you can get admission. You can also apply through some education consultants, they will get admission and also they will process your student visa and give you. You have not mentioned your area of study and also not mentioned which country you wanted to go. As you are a serious student I strongly recommend you to apply for Master's degree in UK. You will complete it in one year and proceed to Ph.D also. You will get many specialized courses available in all streams.

IELTS Academic: Overall 5.5 band required for Bachelor programme (no less than 5.0). This could be the basic requirements needs to be fulfilled to qualify for Australian or Abroad studies. I wish you all the best for your future choices. Thank you.

Hi, I don't think, you can. Admission requirements are very high in Canada and especially for master. You can try some other countries but difficult in Canada.

Dear Shiv,
Any government university/college will definitely accept the NIOS student because NIOS is itself a government recognised institution. However, for private colleges, it all depends upon theory discretion. Ideally, they should, but they do not.
Hope this helps. Good luck.

To study abroad, you need 2-3 years of job experience. First, find a job suitable for you and prepare for exams like TOEFL, IELTS, etc.