CFA

It's not necessary to have work experience to get into CFA. You need to just have 4 years of study. For further details you can refer www.cfainstitute.org

For 1st level, INR. 36,000 s the registration fee and INR. 42,000 is exam fee.
Level 2: INR. 42,000 only exam fee.
Level 3: INR. 42,000 exam fee
This amount may vary from year to year.
You can check it on www.cfainstitute.org

Visit this site for details about CFA
https://www.cfainstitute.org/en/programs/cfa/exam.

I would recommend to you give your CFA level 1 in June, as it give you 1 year of gap to prepare between the two papers, as level 2 will occur in June the next year.

For CFA level 1 exam, you can start from 3rd year of your B.Com.

Criteria for the CFA is same. It doesn't matter from where you do your CFA course, as it is an online course. Fee and eligibility is the same, if you know and if not, you can visit the below mentioned source for details.
cfainstitute. Org.

You can visit the below mentioned source for further details
cfainstitute. Org.

Functions of CFA Charter holders:
22% Portfolio Manager
16% Research Analyst
7% Chief Executive
6% Consultant5.
1% Corporate Financial Analyst
5% Financial Advisory
5% Relationship Managers, Sales, & Marketing
5% Risk Manager
4% Investment Banking Analyst
3% Manager of Managers
3% Accountant/Auditor
3% Strategist
3% Trader
1% Broker
1% Performance Measurement Specialist
1% Private Banker
10% Other.

You can visit the below mentioned source for further details
https://en.m.wikipedia.org/wiki/Chartered_Financial_Analyst.

https://en.m.wikipedia.org/wiki/Chartered_Financial_Analyst.
You can visit the above source for further detail.