Hello Khushboo,

I couldn't find colleges in Delhi which offer a B.Sc degree in Psychology, but since B.A in Psychology is comparable, I am providing you with a list of some of the colleges/universities which offer a B.A degree and their entrances:

• University of Delhi- Admission on the basis of best of four subjects in your 10+2 or equivalent qualifying exam.
• Jamia Millia Islamia University- Admission through entrance exam, to appear in which you need to have passed 10+2 or an equivalent examination with not less than 50% marks in aggregate of best 5-papers.
• Amity University- 10+2 (minimum 55%) for Non Sponsored and (minimum 50%) for the Sponsored category.
• Ambedkar University- 10+2 with 50% and relaxation of 5% is given to candidates belonging to SC, ST, and Physically Disabled (PD) Categories. 
• GD Goenka University - One needs to appear for the Goenka Aptitude Test for Admission (GATA).
• DIT University- Admissions are based on merit-based counseling on 10+2 marks (minimum 50%).

Hope this answers your query, feel free to ask for more info.