Hey Aspirant,

Psychologist is a person who deals with the normal and abnormal mental stress, social and emotions. The eligibility for a psychologist is to have completed 12th or equivalent course, and students from all streams like Arts, science are also eligible for this. Students should have a minimum of 50% aggregate. The duration depends on the course you choose like Bsc in psychology or Msc in psychology. Check out below given link for the colleges which offer psychology course.

https://www.theindianwire.com/education/list-top-10-best-colleges-psychology-india-88684/

Hope this helps, Thank you!!