Hello aspirant! Let me to inform you that admission to bachelor of architecture is done based on two national level exams - jee paper 2 and Nata. Henceforth different colleges have different eligibility criteria that you have to meet with your neet score and class 12 exams. Then different colleges have different forms for admission on their website. There you have to give all the details and then the college releases a merit list. Therefore you need to personally contact the college in which you want admission. So check the official website of college you want.