I would suggest you show your own financial documents, be specific about the period you'll stay in Canada, where you will stay, and what you'll do. If you're working a cushy job (in a top bank, as you said), stating your brother/sister will bear your expenses is not good. State you will stay...
1. Toronto Jurisdiction
2. If you're mentioning your parents address, make sure you include your father's/mother's address proof document when submitting the application (Like their Aadhaar Card with the address on it). Write a letter to the consulate mentioning the address change, and that...