Dear Ravindra, Engineering and Applied or Social Sciences are 2 different fields. After having a Bachelor's degree in Engineering, thinking of pursuing a degree in Psychology is taking a detour. Now there are various courses in Psychology. In India, IGNOU offers you Master's degrees in Counselling, Arts and Counselling and Family Therapy. These courses require you to have a Bachelor's degree in any stream and the minimum duration to complete this course is 2 years and the course needs to be completed within 5 years. The fees is affordable too. Then there is a new section of Counselling that is springing up now and that is Military Counselling. National School of Leadership allows you to take distance course for this programme. There are couple of universities in India which offer a Master's degree in Organizational Psychology. However, they require a student to have Psychology as a subject in Graduation. The various subjects in Psychology are Principles of Psychology, Social Psychology, LifeSpan Development, Patho Psychology, Research Methodology, Counselling, Psychometry, etc.There are foreign universities as well that offer you diploma courses in Organizational Psychology wherein you can pursue the course online while staying in India. Please also remember that mere having a Masters degree in Psychology doesn't qualify you as a counsellor either in a Clinical setting or an Organizational setting. You need to have a licenae to be able to Counsel. To practise legally as a Psychologist, you need to register yourself with Rehabilitation Counsel of India (RCI). If you want to pursue a career in Clinical Psychological Counselling, you should obtain a M.Phil from RCI.Please do let me know if there is any specific information that you are looking for apart from this.

UG in Psychology and BTech are totally unrelated. In what sense are you asking whether they are equivalent? Is it for any eligibility criteria for a PG or an entrance. Please further elaborate.