canada1234 said:You must convince the VO that required funds belong to you & you've not borrowed it. It's been recommended by some senior members on this forum e.g qorax that at the time of POF the bank statement should be of 3-6 months at least. POF could be asked at any stage of the application.
Sudden deposite of funds is not ok
Being Pakistani, you could keep funds in any currency (say US$ or CAD$)
You could invest them in any time deposite scheme thru same bank & they will be automatically reflected in your statement
If you are borrowing funds then its good idea to keep depositing small chunks for some 6 months time rather than large amount
And then get the statement, at the end.