IIT B is the best option among these for pursuing an MTech in Industrial Engineering. Your preference order should be IITB>IIT KGP>IIT K>NITIE. IIT B has an innovative course curriculum. You will learn optimizing techniques and algorithms. The course work and curriculum inspire research. 

Companies such as Deloitte, Mahindra, Accenture, Sony, etc. visit the campus placements. The highest salary offered for MTech Industrial Engineering goes up to INR 19 LPA. 

NIRF rankings are not the sole factor that determines an institute's worth and credibility 

Usually, rankings systems evaluate an Institute based on aspects such as international students, international faculty, and research which don’t matter much for a UG student.

Even without the JEE, IIT Bombay has always been a much more preferred IIT than Madras mainly because of its location advantage and thus excellent opportunities.

IIT Bombay is preferred because of herd mentality as most JEE toppers consider only IIT Bombay worthy of their rank. It’s like because that has been the usual trend, they have to follow it. In reality, IIT Madras has its share of toppers though the numbers might be less in comparison to IIT Bombay.

No, it’s definitely not foolishness, IIT B is among the top engineering colleges in the country. The IIT B is a cherished dream of many and for good reasons. The institute offers a great Computer Science program. The coding culture on campus is amazing. According to the recent placement highlights, IIT Bombay CSE average package stays in the range of INR 15-20 LPA. 

I believe IIT Bombay has a better campus life than IIT Delhi. Here are a few points to prove the same

• Events: Asia's largest technical event Techfest and cultural event Mood Indigo are organized by IIT Bombay. These are much superior and better than IIT Delhi’s 'Tryst' and 'Rendezvous' in terms of planning, entertainment, and scale.
• Transport: IIT Bombay has its own elaborate bus service inside the campus that runs 24/7 on CNG. IIT Delhi on the other hand just has 3-4 buses that run not more than 4-5 times during morning and evening. Hardly all the students are able to avail of this service because the buses are always fully occupied.
• Exotic Powai Lake: The hostels of IIT Bombay especially H12 and H13 offer a picturesque view from the balcony or rooftop and give a calming effect to the students conducive to learning. IIT Delhi on the other hand is located in the most polluted city and the hostels offer a similar unhygienic view.
• Restrictions: IIT Bombay has no rules regarding girls' and boys' hostels and students are free to visit opposite-gender hostels. IIT Delhi gives no such relaxation and gender mix is possible only during House Day, which is held once a year.
• Food and refreshments: IIT Bombay has an abundance of food and refreshments offered through kiosks, food stalls, and ice cream parlors. Although IIT Delhi too provides snacks, its food is not comparable to IIT Bombay.
• Mess food: IIT Bombay serves both non-vegetarian and vegetarian in their real sense whereas IIT Delhi caters to North Indians' taste buds mainly and the quality of food is also lower than IIT Bombay.

Some might find the above differences too minor, for them, it’s better to choose the one that aligns with their own preferences like location, etc.

I always find comparing two branches very illogical because the entire purpose of branches is to cater to the interests of different people. One stream might be good for you but not for the other and vice versa. 

An electrical engineer works with impressive technologies like microprocessors or communication systems. A computer engineer on the other hand achieves great things through his computer. It’s better to read about machine learning classification. 

Some students prefer judging colleges on the basis of the kind of environment they offer. Both IIT Bombay and IIT Guwahati have a great academic environment and offer excellent exposure. Both the colleges are good in all aspects like placements, location, and academics. Don’t follow the trends and standards set by society and follow what your heart says!

I don’t think the right information has reached you yet. In no way are the placements at IIT Patna better than IIT Bombay. Moreover, IIT Patna lacks opportunities in general while IIT Bombay has a plethora of opportunities apart from spectacular placements. 

Here is a comparison of the placement scenario of both the IITs

From the above table, it can easily be inferred that IIT Bombay has better placements than IIT Patna thereby proving your stance wrong.

For Fashion Design or Apparel Design, NIFT is the best institute in the country. If you aspire to become a designer or stylist, then choose NIFT. It offers many design specializations such as Fashion, Accessories, Textile, Leather, Knitwear, etc. 

For Visual Communication and Product Design, IIT Bombay will be better. IITB basically offers Graphic Design, but it has more importance due to the IIT tag.