CFA

The Chartered Financial Analyst (CFA) Program is a professional credential offered internationally by the American-based CFA Institute (formerly the Association for Investment Management and Research, or AIMR) to investment and financial professionals. A candidate who successfully completes the program and meets other professional requirements is awarded the "CFA charter" and becomes a "CFA charter holder".

You are eligible if you are in the final year of your Bachelors programme or already have a Bachelor's degree, or have professional working experience that totals up to 4-years.
You are eligible to apply for CFA.

Ethical and Professional Standards
Quantitative Methods
Economics
Financial Reporting and Analysis
Corporate Finance
Equity Investments
Fixed Income
Derivatives
Alternative Investments
Portfolio Management and Wealth Planning

Yes.
NISM Certification Exams are qualifying exams to perform a specific job function. For example, you will be required to pass NISM Series VA: Mutual Fund Distributors Certification Exam to sell mutual fund products.
Specifically for Research Analysts, you can start working as an analyst, but you will not be able to publish any research report or make any research recommendation unless you pass the NISM Series XV: Research Analyst Certification.
For more information, please visit:
https://www.prepcafe.in

Yes, you can apply for CFA if you are in final year, or if you completed your degree.
All the best.

If you are interested in finance, you can go for it.
But it is time taking and has 3 levels. Instead, it is better for MBA finance.

CFA i.e.certified financial analyst offered by CFAUSA. It's an internationally recognised certification programme. It can be beneficial post MBA finance, M.Sc finance, M.Com or PGDM with major in finance. A few recognised training institutes in India from CFAUSA offer these programmes with placement assist in different financial company.

CFA (Chartered Financial Analysts) is a professional qualification offered by the CFA institute to financial analysts. A CFA qualification validates your knowledge of security types and investment along with the knowledge of quantitative methodologies for analysing securities that is assessing their value and identifying their underlying risks.
Eligibility:
For CFA:
One must have a Bachelor's (or equivalent) degree or be in the final year of your Bachelor's degree programme at the time of registration.
You can refer the link for more required information:
https://www.cfainstitute.org/programs/cfaprogram/register/Pages/index.aspx