Hello aspirant

Graduates who have obtained master's degree in psycology are eligible for pursuing phD in clinical psycology . However mental health is also equivalent to psycology so if you have master's degree in mental  Health , you can go for phD in clinical psycology Course.  You must also clear the relevant entrance exam such as UGC NET and also get a valid aggregate score as per the requirements.

The Course is of three years duration. Fees for the  entire duration is 59,550 to 3.65 lakh.

Average salary for the psychologists is 3.7 lpa

The salary increases with experience .

For details you may visit the link given below

https://www.careers360.com/courses/phd-in-psychology