hi,

see the eligibility criteria for prime minister special scholarship scheme is as follows:

candidates must  Pass 10+2 examination from (JKBOSE or CBSE Schools located in J&K and Ladakh) in Academic Year 2018-19 or 2019-20 is applicable for 2020-2021 session. degree course, engineering, medical , professional studies courses are eligible under pmsss scheme. however since you have already completed graduation , that means your 12th course has completed three years before. students can apply for pmsss with in two years after completing 12th. so you are not eligible for pmsss now for any other  courses.

follow the below article to know in details:

https://www.aicte-india.org/sites/default/files/AICTE%20Ad_English_03.07.2020.pdf