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Since you already possess more than 6 years, I would suggest you get into an Executive MBA program since it will help you take your career to the next level. Though you can also do normal MBA, that wouldn't do much good when compared to Executive MBA's.
One of the eligibility criteria for getting into Executive MBA is that you should have at least 3 years of working experience. Since you have already cleared that criterion, you can go forward and start applying for Executive MBA programs.
While applying for institutes, make sure you do some background research on institutes and check out information such as accreditation, certificates and other things just to be on the safer side.
Once you apply, you will have to attend entrance exams and pass them to get a seat.
Here is a list of entrance exams :
GMAR
GRE
CAT
XAT
MAT
SNAP
FMS
ATMA AIMS
MAH-CET
JMET
IGNOU OPENMAT
IBSAT
Here is a list of some of the institutes.
GITAM University
Faculty of Management Studies (FMS) Delhi
Indian Institute of Foreign Trade (IIFT) New Delhi
Indian Institute of Management- Ahmadabad (IIMA)
Indian Institute of Management- Bangalore (IIMB)
Indian Institute of Management- Calcutta (IIMC)
Indian Institute of Management- Indore (IIMIDR)
Indian Institute of Management- Kozhikode (IIMK)
Indian Institute of Management- Lucknow (IIML)
Indian School of Business (ISB)
Symbiosis International University, Pune
Xavier School of Management (XLRI) Jamshedpur
You can check out this blog post which has some detailed information about admission procedures and entrance exams https://campushunt.in/blog/best-executive-mba-collegesin-bangalore/

Yes, you can get. NIOS courses have full validity and can be used for higher studies and employment purpose similar to other boards certificates. Mass communication courses can help you develop good communication skills that can help you make it big in the field. There are numerous media houses, news channels, etc. That, you can work with after completing the mass comm course. Amity University, Noida offers BA in Journalism and Mass Communication of three years undergraduate course. The eligibility criteria for this course is 12th pass only. Further, the course fee is about Rs. 1.25 Lacs. The selection is based on English Language Test and Personal Interview.
Good Luck.

I would suggest you go for both i.e. B.Com LLB where you will learn about both the things. It is a 5-year integrated undergraduate course which has a total of 10 semesters. There are 2 semesters in each year consisting of a minimum of 5 or more subjects.
B.Com LL.B Eligibility Criteria:
*A candidate must have passed 10+2 or any equivalent examination from a recognised board or university under any stream. Students from the commerce stream are preferred over Science and Arts candidates.
*The minimum cut-off is 50% (45% for reserved categories) as per Bar Council of India.
*The candidate must not be over 20 years old at the time of admission for integrated LLB courses.
For reserved category students, the age limit is extended to 22 years.
*Clearing an entrance exam and an interview round are mandatory to gain admission.
*There are national-level exams as well as tests conducted by state boards and universities.