Hello,.
Talking about the seat matrix first , there are 120 seats each for ba llb and bcom llb in chandigarh campus , and ghere are 60 such seats in regional centres.
After declaring the results ,Pu prepares a provisional and final merit list in which marks obtained in the exam are added to others ( such as 12 % ). Both the parameters carry equal weightage.
Looking at your scores, your final merit score would be something around 59 which is quite low for getting into chandigarh campus. But since you are seeking admission under defence quota so it might help you in fetching a seat there. Pu offers 5 % quota to the wards of defence , paramilitary personnels. you can read further about the reservation criteria on the official site...
As of now it's difficult to put forward any specific prediction.  Cutoff ranks vary due to many reasons.just wait for the final merit list to be out.
Hope this helps.
Good luck

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