hello,

yes, you are eligible to opt for psychology through gate and the code is XH_C5. Just at the time of registration you need to select XH for psychology and need to study all the syllabus releted to the subject. You can know the detailed syllabus from the official website given below:

https://gate.iitb.ac.in/syllabi.php

Psychology is a highly rewarding and lucrative field of study. A psychologist salary depends on many factors like his/her qualification, area of specialization, and experience in the profession. Professional psychologists with M.Phil and Ph.D degree earn quite handsomely. Those engaged in private practice have more scope for earnings.
In this field, your starting salary can vary between INR 1.79 LPA to INR 6.23 LPA . As one establishes himself in the field and specializes in any of its branches, he can earn more

Aspirants who have successfully competed their training in psychology can make their mark and pursue a career as a psychologist in the following lucrative branches of psychology:

1. Clinical Psychology

2. Counseling Psychology

3. Health Psychology

4.  Teaching and Research

5. Industrial Psychology etc.

all the best!!