Dear, the result of psychology in 2013 has been discouraging. So, don't think that it will be a scoring subject every year. However, if you feel that you are good at psychology as you said you have more inclination towards science subjects, then it will be safe to opt it. Psychology is not only an interesting subject, but it also helps you in everyday science.

Regards

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Hota hai magar mehnat-e-parwaz say roshan..
Ye nuqta k gardoon say zameen door nahi hai..