Hello Aspirant,

Hope you are doing great. You have two ways of joining CA, One way is after 10th examination you can directly opt for groups with commerce and there itself few institutions can integrate you to CA together. and another way is after the 12th examination you can join any CA institute and you can register in the CA foundation and give your exam accordingly.
Students, those pass their graduation with commerce stream, they are required to pass their 12th exam with minimum 50% aggregate marks.