Hey.
The cut off for admission in CNLU, Patna in the previous year 2018 for the State Backward Class
Was an all india rank of 3301. And for the State Women Backward Class was a rank of 4273. Considering this and your AIR you will have a chance of Admission in CNLU under the OBC category only if your AIR is around this range.
Considering that your AIR is 13779 you don't seem to have any chances here.
Keep  in mind that the cut off varies each year due to several factors like level of Competition etc and it might differ this year too. You can use the link below to check previous year trends.

https://law.careers360.com/articles/cnlu-patna-cutoff/amp

Best of luck

Common Law Admission Test

Application | Eligibility | Exam Pattern | Admit Card | Preparation Tips | Result | Answer Key | Accepting Colleges

Get Updates Brochure