Mr L said:
I was talking to the people in some of the private institutions, they mentioned I could apply for student visa, all I could do is show I have the money for room and board which will not be a problem. They said, I could apply for student Visa inside Canada, without having to leave. Is this correct?
No - that's not quite correct.
To qualify for a student visa, you must first apply and be accepted to an educational institution. The course must be more than six months in length. When you apply for a student visa, you must show a bank balance with sufficient funds to cover first year tuition + $10K (living expenses). You must also demonstrate that you have strong ties to your home country to prove you will return home once your studies are complete. In addition, the course you plan on taking must make sense given your education to date and career direction (otherwise you may be refused due to course mismatch). Also, note that you cannot apply within Canada - meaning that you must send your application to your local visa office for processing.
Be careful if you're applying to a private educational institution. Usually students can apply for a part time work permit once they have completed six months of study. However many private institutions (e.g. LSBF) do not qualify for the work permit (i.e. you can't work as a student in Canada) and also don't qualify for the post graduate work permit. If you decide to go the study visa route - chose your school wisely.
Keep in mind that the private institutions are in the business of making money and they will often make the process sound far easier than it really is.
If you visit the International Students section of this forum - you will see the process is not so easy and there are many rejections for various reasons.