I got 44 marks and 392 rank in BA LLB as there are only 150 seats for this course in CUSB. Can I get admission there?

You should complete all the formalities and take part in the counseling process. With your rank, you should get a seat. Even if you don’t get a seat in the counseling, regularly visit the CUSB website. It often happens that students with good ranks leave the college after taking admission and the university starts allocating those seats based on the merit list. So, keep visiting the website to know, if there are vacant seats.