After graduation, you can start CA course by direct entry scheme but there are some criteria for entry through direct entry scheme:

• If you are graduate from commerce with 55% and above, then you are eligible for direct entry scheme. 
• If you are graduate but not from commerce background and you scored 60% or above, then you are eligible for direct entry scheme. 

Register with the ICAI for the Intermediate course. Now you have to go through eight months of study period after registration to appear in the Intermediate exams. 

After completing 9 months of practical training, you can appear in CA Intermediate examinations. The students who are appearing through the Direct Entry Route have to complete first the nine months training period of their articleship to appear in the CA intermediate.

Before this 9 months articleship training you have to complete IT and OT training first. 

The registration fee for students is Rs. 15000 for both groups and Rs.11000 for a single group, Students activities fee is Rs. 2000 for both groups or the single group and registration fee as article assistant is Rs. 1000 for both groups. The overall fee is Rs.18000 for both groups and 13000 for the single group. 

Cost of Prospectus Rs. 200 (US $ 20) is to be paid by direct entry students in addition to above fees.

You can register for ca course after you complete your graduation .you should get a minimum of 50 % percentage of marks to directly enter into intermediate stage .you should pay an amount of Rs.11,000/ for registering as an intermediate student . Then you have to do nine months of articleship training then you are eligilble to write inter exam .the articleship is for a period of three years . after completion of the exams you have to work under the same employer for remaining period . After completion of two and half years of your articleship you will be eligible to write ca final exam Note : you should complete both orientation and 100 Hours compulsory computer trainilng before registering articleship and while doing articleship you should complete GMCS-1 AND GMCS-2 the costs are: orientation" 3000 100 hours 4000 gmcs-1and gmcs -2 both 5,500 each and final registration at a cost of Rs. 10,000/

Hi after Bcom, u can enroll directly for CA Intermediate | CA IPCC which will cost you around 20K for registration & ITT training. For classes you can see video lectures on CAkart. After CA Intermediate | CA IPCC, you can start your artcileship and give final exam after 2.5 years of articlehhip. the final Registration cost will be around 15k & plus Coaching fees. regards Sumeet.