M.Com

Dear Sachin, there are various courses to become a data analyst. Yes of course, graduation or a PG degree is more than enough to go for data analyst course. Most entry-level data analyst jobs require at least a Bachelors degree. To become a data analyst, you will want to earn a degree in a subject such as mathematics, statistics, economics, marketing, finance, or computer Science. However, you can find some short term data Science courses that will help you understand the work better and master the field by taking small steps. You can visit the below mentioned url for more details. https://www.udemy.com/topic/data-analysis/
I hope this helps. God bless you.

There is no subject / specialization wherein Job guarantee is there. However there are ample jobs for people who are flexible, willing to learn & have the positive attitude. If a person has clarity on what he wants to do in life then he can comfortable locate a job for himself, yes the remuneration my not be matching his/her expectations but then remunerations is a function of time, experience & skills acquired so have patience and all will fall into place.
Having said that a BA graduate in history/ philosophy / political science can assist you in preparing for UPSC exams. A BA in languages can given an edge in pursing a career as a teacher / journalist/ writer/media
A B.Com in accounts can give you an opportunity to pursue a career as an accountant and also explore CA as a professional course option
BSc in any subject will give you an opportunity to pursue a masters degree and then pursue a career n research /teaching/academics.
After graduation one can pursue post graduation in the said subject and then pursue a specialized career in the area.
Also after a generic BA/ B.Com/ B.Sc one has ample opportunities in sales, operations, customer service, education, manufacturing , media, that a person can pickup and build a career.
In case you have any specific query regarding a subject then do let me know and i will try and answer it