B.Tech Electronics and Communication Engineering

If you are interested in higher studies or research then you may go for M.Tech. For doing M.Tech, you should have at least 55% in B.Tech/BE and a valid score of GATE. I am enlisting a few good colleges for M.Tech IIT Roorkee, IIT Guwahati, DTU, IIT Varanasi, Anna University, IIT Dhanbad, NIT Surathkal, NIT Tiruchirappalli, NIT Warangal, IIIT Hyderabad, IIEST Howrah, College of Engineering Pune, Jadavpur University, IIIT Allahabad, NIT Calicut, Birla Institute of Technology and Science, Lovely Professional University, Jalandhar, Punjab, College of Engineering, Anna University, Chennai, Delhi Technological University, Delhi, Indian Institute of Engineering Science and Technology, Ramaiah Institute of Technology, Bangalore, VIT Vellore, Jadavpur University.
If you are not interested in learning technology any more, only then you should change your field and pursue MBA. You should have cleared any one entrance test (such as CAT/MAT/XAT/NMAT/CMAT/GMAT/NEST) accepted by various colleges and should also have minimum of 45% to 55% in your Bachelors (any stream) for admission in the same. Admission in MBA is done via two modes- either through an entrance exam or direct admission which is based on merit basis or management quota basis. The top schools of India mostly use some entrance tests score to provide admission. MBA graduates can enjoy better career options. Some of them include Finance, Marketing, Operations, Human Resource, International Business, and IT. There are several popular job roles available for MBA graduates such as Business Manager, Human Resource Specialist, Accounts Executive, and Public Relations Specialists. You can do MBA in any specializations of your interest. Some Good Colleges that can be considered are:
NMMIS Mumbai
XLRI- Jamshedpur
Goa Institute of Management -Goa
Lovely Professional University-Punjab
K. J. Somaiya Institute of Management Studies and Research - Mumbai
School of Management, D. Y. Patil University - Navi Mumbai
Maharashtra Institute of Technology Kothrud -Pune
International Management Institute - New Delhi
Management Development Institute - Gurgaon
Christ University - Bangalore

The scope of big data/ analytics is generating immense data everyday that get unmanageable over time.
Passion for coding is definitely a primary requirement for a data scientist or big data analyst at any level.
Btw, coding will be a very common practice 40 years down the line.
Work experience surely matters in the Masters courses of Business Analytics to make your profile stand out, to check the real-world credibility of your skills.
It should always be there regardless of the course.
If you do big data and want to do analysis then yes you would be a data analyst and progress from there. It all boils down to which field you want to specialize in. Job opportunities aren't an issue if you are well prepared and know all the major concepts and have a great project portfolio to show.