Hello,

There are no qualifications required for IELTS and you can give it irrespective of any criteria.

There are two types of IELTS, namely, IELTS General Training and IELTS Academic. For the Canada express entry scheme, you will have to give IELTS General Training. The minimum score requirement varies with the prospective job you may be looking for. The minimum requirement is a CLB level 5 which is equal to an IELTS score of 5.0 in each of the four sections. For some jobs, such as federal positions, the minimum requirement is CLB level 7 which is equivalent to IELTS scores of 7.0 in each of the four sections.

For more details on eligibility, visit: https://www.canada.ca/en/immigration-refugees-citizenship/services/come-canada-tool-immigration-express-entry.html

Dear Raj Shetty 

Any one can write IELTS exam those who have a valid passport

In the case of express entry you have to write general IELTS and have to achieve maximum score atleat  7778

Your age educational background family background is also consider for Canada express entry 

Best of luck