You are employed with XYZ India and have been deputed to XYZ Canada (Canadian arm of XYZ India). Your work permit has the name of XYZ canada.
You will be able to claim 50 points only after completing 1 year with XYZ Canada in Canada.
The bank (client) where you are working at has nothing to do with the whole process.
P.S. I was on ICT work permit, claimed 50 points and got PR.