If 20 Lacs is required to study MS in Canada then how much money do I need to show to get Canadian study visa?

The total fee amount+living expenses+other expenses that you have to pay while living in Canada to make sure that you are sufficient with your funds requirement.

For the visa, you are required to show the fee for 1 year or nine months plus living expenses for the one year which is estimated to be around US$8000. The university will update you on the amount to be shown.