Firstly, there is no doubt that IIITMG has a better reputation, placement record, and facilities as it is nearly 8 years older than IIITDMJ. But this is only one side of the coin and most people don't see the other side of the coin. Let me show you these in broader aspects

Talking about placements, IIITM G may have a better placement record but we also must not forget that we are comparing graduates with undergraduates. We are comparing a student with a dual degree to a student with a single degree and hence this comparison is not fair.

Coming to the dual degree, you must think twice before enrolling in a dual degree course. 2 cases may are:

• First case: If you want to earn as soon as you are graduated, but a dual degree doesn't give you this freedom and you are forced to study for an extra 1 year before you start with a job. If you get a whooping package then it's fine otherwise it is just a waste of time.
• Second Case: You want to go for further studies. In this case, it may seem that a dual degree is a blessing but if you think about it, then you may think that you are limiting your chance of doing a master's from any other and better college. For example, if someone graduated from a 4-year program and did his master's from IIT-B then it's a win-win situation for him.
• Third Case: If you want to go for an MBA, then you are saving yourself from appearing in CAT and GMAT, but this is the same as above. You are losing your chance to get an MBA degree from IIMs.

I will advise you to have a deep discussion with your parents, go through some articles and then decide which one is good for you.