LLB is a Bachelor's degree that you can pursue after your 12th in any stream for a recognised board. Now after LLB, the next step is LLM which is a Masters in Law Programme. But to pursue LLM, you need to hold a Bachelor's in Law degree. So unfortunately, no College offers LLB after Graduation. But on the brighter side, there is no upper age limit for most Entrance exams which means you can study LLB on the basis of your 12th qualification. If you can let us know the State you belong to, we can help you with relevant entrance examinations. CLAT is a national level entrance exam and you can apply for that as well.