Hello Tadi, 

You can appear for the three year law-course offerred by them as it requires you to have a 10+2+3 degree, that is 12th qualifying degree and a graduation degree. Moreover, there is no age-limit to appear for the exam, so you can surely apply for it. 

Eligibility for Three Year Law Progamme:

A candidate needs to have a graduation degree in (10+2+3) pattern from any recognized university with at least 45% of the aggregate marks or any other examination recognised as equivalent by the university concerned. If any candidate secures less than 45% marks in graduation, then he/she should have passed any additional graduate or postgraduate degree with 45% aggregate marks. The application form for the said examination will be available starting from the First Week of March. Keep Posted! 

Read up more on Careers-360 at the link given here: AP-LAWCET: https://law.careers360.com/articles/ap-lawce