IELTS

It depends on what type of course are you looking for - degree or diploma.
For Degree courses, 6 band of IELTS is usually the minimum. However if you are looking at Diploma or Certificate courses then 5.5 bands are enough. You need anything above 5 bands to get admission for a diploma course.

Check Simon Fraser, Dalhousie and Carleton.

Hi Bharath, IELTS is a university or college requirement. You must fulfill the college specific requirement, be admitted into the college before applying for the visa. Hope this helps.

Dear Vinod, IELTS is an English language testing system, it consists of 4 parts, Speaking, Listening, Reading & writing. The scores are given in bands least being 1 band and highest 9, each section is scored individually and also an overall score is given, there is nothing called a passing score and as Nidhi has already mentioned the minimums are as per the course/ college being applied for requires.

ielts is enough but some top university may ask for gre score

Hi, every university across the world equires IELTS or TOEFL and every university also have waivers. They may waive off the requirement after evaluating your profile. You musy write to the universities in this regard. Best of luck.

Dear Mr.Chaitanya how about your aggregate from your academics and write about interested countries,do let me know after that I will let you the perfect shortlist for you.
Think and write me back

Dear Shrishti,
Regular practice and take the mock tests or practice tests regularly. Practice tests helps to identify where you stand. Identify your weak areas and work on them. Plan your study as per your convenience and capacity.
Best Wishes