CA

There's no college for CA. Various coaching institute helps in the preparation of CA.
You can opt for their coaching along with your graduation course.

Prepare For CA Exam | Ultimate ICAI CA Exam Preparation Tips
Preparation Tip 1: Begin Early.
Preparation Tip 2: Make a Solid Study Plan. CA Exam Preparation Tip 3: Select the Right Institutes for CA Coaching.
Preparation Tip 4: Break into Achievable Target.

Register for CA Foundation
Register with the Institute of Chartered Accountant of India that is ICAI.
Enter your details with ICAI. Enter your name, DOB, father's name, mail id, and all other necessary details for registration. After entering your details, click enter and this will pop up to an OTP page.

Students who want to become the CA after 12th Science stream can apply for the CA Foundation exam, which is the entry-level examination for the programme, after passing the 12th board exams. After completing the 12th examination, they will be eligible to apply for CA Foundation examination.

Common Proficiency Test is an entry level examination for admission to the Chartered Accountancy Course. A 10th Passed student can register for CPT Course by filling in the prescribed registration form along with the requisite fee. A student who has passed higher qualifications than 10th class such as B.Com M.Com LL.B. , ICWA, CS MBA is also, in the first instance, to appear and pass CPT Examination to join the Chartered Accountancy Course.

There are three levels in chartered accountancy and you have to register yourself with icai in all three levels separately after clearing of previous level.
CA Foundation - Rs.9800(including journal)
CA Intermediate - Rs.18000(Both groups)
CA Final - Rs.22000
Examination fees is extra throughout the levels.

Though CAs and CMAs can do each others work. And have equal opportunities in PSUs and MNCs. CAS are mainly chosen for accounts profile whereas CMAs are mostly chosen for control profiles.

The minimum duration of the Chartered Accountancy Course for a person joining after Class XIIth (I. e. through CPT Route) is 4.5 years.The minimum duration of the Chartered Accountancy Course for a person joining after Graduation (I. e. through Direct Entry Scheme) is 3 years. Thank you.

Practice daily, solve your text book, refer previous year question papers.