IELTS

Hi,
On the basis of your grades check top ranked universities in US and Canada such as University of Toronto, Carnegie Mellon University, Cornell University, University of British Columbia, University of Waterloo, University of California Los Angeles, etc.
However, you have to research on the various admission requirements and keep in mind your country choice and career plans, budget, etc. and narrow down your university choices accordingly. Shortlist 5-7 universities likewise.

Hi Dinesh,
It's a low score. Whether you can study abroad will depend on your academic profile and the university. Your IELTS is low but if the university wishes it can give you a bridge course. You must check university websites and email them.

TOEFL- If you are proficient in English, then you should not spend more than a total of 15 hrs. Just solve few sample tests. Same goes for IELTS. If you are moderately proficient, spend 2 hours every day for 3 weeks.
For SAT and ACT: It depends on your proficiency and your target score. If you are aiming for the top 10 percentile and also are quite proficient already, then spend 3 hours for 2 weeks solving papers and revision. If you have just started preparing, then spend 2 hours for 3 months to gain good understanding of the test pattern and to do well.

Hi,
The Official Guide for GMAT Review by GMAC is supposedly the best, you may purchase the book at www.mba.com. You may also check for GMAT prep books by Manhattan. To prepare for IELTS you may check these:
The Official Cambridge Guide to IELTS
Cambridge IELTS Practice Test series:
Barrons Writing for the IELTS
Cambridge Grammar for IELTS

Hi Pratiksha,
Can you be more specific and clear? What do you plan to study?

Hello Devansh,
You have fantastic marks in your academics. I am sure you would get admission in your desired institute in Germany. Hence I would advise you to approach an agency dealing with sending students to Germany to take care of all angles and nuances.

4-5 times in a year with a gap of 21 days.

Most of the scores are valid up to 2 years from the date you took the exam. Every country has different criteria and different requirements of the score for admission.

Hi Drashti, your IELTS won't determine what course you can do. It is part of the university admission requirements. You must check if you have required academic grades which is more important. The desired course of study will depend on your 10+2 stream, education background, your own interest etc. For course list you can check here
https://studyabroad.shiksha.com/bachelors-of-business-in-abroad-cl1239

For Canada, the minimum percentage is 50% but in Australlia, it is 65%.