M.Sc

You will have to complete a B.Sc in that course first. You should pursue Masters instead of changing your stream now.

As per the eligibility criteria, A candidate should have pass in BA / B.Sc Degree in Psychology from a recognized university, with minimum of 55 % aggregate marks or equivalent, or pass with 50% aggregate marks in Bachelor's Degree any discipline with Psychology as one of the subject. Hence, B.Sc Human development students are eligible for this programme.

Hello,
Of course, you can. I am sure you have done your previous MS based on graduation in engineering. Just follow the required procedures or else approach an agency dealing with sending students to Canada for MS Best wishes to you.