Hello student no there's nothing like that for gap years or PSU.

You must be applying for clat PG

Eligibility for clat pg :- candidates must passed their LLB or equivalent examination with minimum 50% of marks appearing candidate for final year examination are also eligible.

Clat important dates :-

Registration 1jan to 31st March

Admit card likely in March

Exam :- 10th of May

Results :- 24th of May.

Feel free to comment if you have any doubt

Good luck