Thanks
@FoodGatherer I will surely consult an immigration lawer. But asking for transfer doesn't make much sense, the situation is as per my office documents, I am employee of Tornonto only as my employer doesn't have any office in Quebec. It is just that I have to sit at my client's office as a representative of my employer (to attend meetings or resolve any issues, client asked for this thing) as I mentioned above, my payslips, job/assignment letter, T4 forms all have Toronto address. Montreal is only mentioned in my work permit and my current temporary address. The contract with this client is going to end in December 2020, if there is no other project I will have to move back to my home country in that case.
Also regarding my address, last whole year I was in temporary accommodation only which was arranged by my employer since I have to be away from office due to client's requirement.