Colleges in Karaikudi

The bar council has removed age limit for the course but you have 40% marks which is 5% lower than the required percentage. Try doing it from an open university. If you don't get admission, then you either you will have to do another master/bachelor course or a 5 year LLB on the basis of your class 12th percentage.

Use this
https://www.shiksha.com/mba/tancet-exam-cutoff

If you are from a reserved category, then yes, you can apply for admission here but if not, you are not eligible. Minimum eligibility for admission in PG courses is 50% in Bachelors degree in relevant subject.
For details regarding last date and fees, please refer to the link given below
https://www.shiksha.com/university/alagappa-university-karaikudi-23417/admission

The minimum required cutoff to join is 68%.

Dear Thakor,
May I know what you have completed beforehand, so it will be very easy for me to check if you can go ahead to pursue the course or not. The admission or entry to the course will be based on your last studied course and the percentage. If you could share it, I can help you out.