Then you can't live with your parents in Canada permanently unless they apply for immigration.
Your parents can apply for regular visitor visa which will allow them to stay for 6 months at a stretch upon each entry. You can write an invitation letter asking them to visit you temporarily. But since you're student and financially not solvent enough, your parents will have a hard time convincing visa officer that they will leave Canada after the tentative visit. However, having ongoing employment, business, tons of cash/property, other dependent children in India, healthy travel history may strengthen their case.
Your parents can apply on paper using VFS service from India or you can apply online on their behalf.
Application for Visitor Visa