I am an indian.i have completed my graduation in electronics & want study psychology in which my interest lies?

i came to know that i can do it by completing a conversion course or program which gives me a diploma in psychology. after getting it i can do my pg in my area of interest in psychology because most entry requirements for doing pg in psychology need a ug degree in psychology which i dont have as i am an electronics engineer. plz can anyone give me info abt this conversion courses and which are the best universities that provide such conversion courses in UK.