Yes, AILET is an All India Law Entrance Test to offer admission to eligible candidates in undergraduate, post-graduation, and doctorate. PMSSS will provide the scholarship if you are applying after the 12th i.e for under graduation.
You have to fill the online PMSSS application form and do the document verification as normal other students usually do. Once your document verification is completed you will be able to login into your pmsss portal
You have to select a Professional degree not a general degree in your PMSSS portal and there select the Entrance examination and upload the joining letter/bonafide signed by the college authority.
Once it is approved your scholarship will get started. Thus PMSSS provides scholarships for pursuing LAW after the 12th.