Yes, you can pursue a BSc in Psychology without taking biology in 11th and 12th. In many universities and colleges, psychology is offered as a social science or humanities subject rather than a science subject. As such, the focus of a BSc in Psychology is primarily on understanding human behavior, cognition, emotions, and mental processes, rather than in-depth study of biological aspects.
Admission requirements for a BSc in Psychology may vary depending on the university or college you apply to. Generally, the essential subjects for admission consideration are English and sometimes Mathematics (or a quantitative subject). However, specific science subjects like biology are not typically mandatory for a BSc in Psychology.
Keep in mind that the curriculum and specific requirements can differ between institutions, so it's crucial to check the admission criteria and course structure of the particular university or college you are interested in.
If you are passionate about psychology and wish to pursue a BSc in the field, you should focus on meeting the necessary requirements in other relevant subjects and demonstrating your interest and commitment to the field of psychology in your application.