ICAI Exam

Hello,
The ICAI Exam also known as CA exams, is conducted by the Institute of Chartered Accountants of India (ICAI), to produce chartered accountants in India. The ICAI conducts various examinations corresponding to different levels of the Chartered Accountancy course, in accordance with the Chartered Accountants Regulations 1988. Candidates who wish to take up Chartered Accountancy as a career, are required to enroll for the programme at ICAI and qualify all the levels of exams within a stipulated period of time to be certified as a Chartered Accountant. ICAI Examination Levels
Common Proficiency Test CA CPT)
Foundation
Intermediate (Integrated Professional Competence) Examination
Final Examination
Intermediate (IPC) Eligibility criteria for Intermediate examination is divided into three categories:
Category I: Candidates who have passed CPT and 10+2/PE I/ Foundation/Entrance Examination. Category 2:Candidates who were already registered for erstwhile Intermediate Examination as per syllabus under paragraph 2 or 2A of Schedule B or Professional Education (Course-II) or Professional Competence Course and converted into Intermediate (IPC) Course/ Accounting Technician Course (ATC)
Category 3: Direct Entry
a) Graduates/Post graduates:
Under this category, those candidates are included who registered for the intermediate course/ATC and also completed or would-be completing 9 months of practical training (including study course for a period of 8 months)
Candidates converted from Intermediate/PE II/PCC/IPCC/CPT into the Intermediate (IPC) Course/ATC under this category and also completed 9 months of practical training. Candidates who registered for Intermediate (IPC) course through CPT route and appeared in the Intermediate (IPC) Examination in one or both groups but did not pass any of the groups, and converted to Intermediate (IPC) under the Direct Entry Scheme and commenced practical training on or before 31st October, 2016. For Intermediate level examination passed students of The Institute of Cost Accountants of India/The Institute of Company Secretaries of India, eligibility criteria is same as Graduates/Post Graduates.

Yes, you can do both CA and B.Com together If you completed class 12th, so you are eligible for
CA course.
Here, I will tell you the details about CA.
The course consists of three main levels:
Common Proficiency Test (CPT)
12th pass candidate eligible for CPT. Its duration is 8 months.
CPT Exam Details: CPT is an Objective type test requiring Basic Knowledge of the subjects covered. CPT will be held two times in a year: June and December. Professional Competence Course (IPCC) and Practical Training
A student who has passed the CPT and 12th standard examination may join the Integrated Professional Competence Course. Its duration is 36 month.
CA Final:
Those candidates qualify in IPCC they are eligible for CA final course.