Nope! For PGLAWCET you need to have completed the LLB then only you are eligible for the course of LLM. Now if you want to apply for LLB then  it is instructed that the candidate must pass the Bachelors degree in 10+2+3 format which is suddenly not the case for CA. Thus the only way for you to go for Litigation is to get a bachelors degree and then only you can apply for the law entrance examination for LLB.

Some of the preferred LLB exams are:

1.CLAT (Common Law Entrance Test)

2. AILET (All India LAW Entrance Test)

3. MHT CET LAW (Maharashtra Common Entrance Test Law)

4. AP LAWCET (Andhra Pradesh Law Entrance Test)

5. TS LAWCET (Telangana State Law Entrance Test)

For more law entrances in India you may visit the link below:

https://law.careers360.com/exams

I hope this answer helps. All the very best for your future endeavors!