One of my friends graduated from NIT Trichy and here are some details about the wifi and its availability around the campus. 

• The Wi-Fi speed varies depending on the hostel you are in and the location of the room in the hostel.
• The lucky ones who have a wifi router just outside their room are lucky enough to get such rooms. 
• They can stream online and don’t have to worry about slow connection speed.
• However, sometimes it disappoints because of a few technical issues but then this is something that will happen and get rectified and then happen again.
• Hostel room allotment is computer-based and so you are too lucky to get a good one. Rest the world works on negotiations.

First-year and third-year hostels have good wifi compared to second and fourth-year hostels. For the second floor, it’s amber, for the third floor it’s zircon, and for the fourth floor, it’s garnet. The WiFi speed is overall good. At night, the wifi speeds go up to 4 to 5 MBPS.

Yes, they are eligible and they are known to get offered good packages. According to some of my friends at NIT Trichy, some companies, especially MNCs which are expanded throughout different continents tend to prefer these students over others, if you're competing against them in the final interview.

• Their exposure to different country backgrounds and openness to move around the globe for education represent them as suitable candidates for MNCs.
• They are also often better at communication as well.
• These qualities make them a good hire for companies, as they can easily adapt.
• For the Indian students, you should not be surprised to see some of your NRI friends getting placed unexpectedly into some of the best companies.

So if you're a DASA candidate in NIT Trichy then be assured that you'll get the best shots to convert in campus provided you get to the final round on your caliber. 

Since one of my cousins is currently a part of NIT Trichy, he can possibly elaborate on your question more thoroughly. 

• The dress code at NIT Trichy, as per my cousin, is very rare. 
• Unlike many other institutes in Tamil Nadu, the dress code at NIT Trichy is quite unflustered. 
• Students, mainly boys, cannot wear shorts into the class but can definitely wear t-shirts if they wish to. 
• The major drawbacks are rather faced by the girls of the institute because, at any seasonal point, they are mandated to wear salwar kameez or Kurtis. 
• It is both unjust and apparently not highly appreciated, in terms of climatic conditions, comfort zone, and other similar factors. 
• That said, it can get highly unmanageable during the summertime when the climatic conditions of Tamil Nadu usually soar the highest. 
• Trichy, Tamil Nadu, is extremely conservative in factors relating to the modern outlook of society. 
• Regardless of how much the campus has currently grown, there have been multiple incidents of fining bulky amounts to students for unconsciously flouting the dress code of the institute, even on basketball fields. 

However, it is best if you research more about the present scenario of NIT Trichy, regarding their dress codes, regulations, and other relevant aspects. 

Architecture students at NIT Trichy are extremely talented and hardworking. The campus has a competitive environment. The whole course is more about learning by doing rather than mugging up theories. 

A career in Architecture requires you to learn from an already established firm or architect and then go ahead to carve your niche. My friends have shared really positive experiences about these kinds of internships, so my guess is that at NIT Trichy you give you the proper exposure. 

You must know that the field of architecture is not weak-hearted and you must possess good control over your body NIT Calicut is also one of the good colleges for architecture. But the ultimate decision lies in your hand.

I am assuming that you are asking about core civil job profiles. According to my friend at NIT Trichy the placement record for the Civil Engineering branch is quite good. Here is the placement trend for the branch. 

According to the placement highlights of the past few years for Civil Engineering the highest CTC offered by the recruiting companies is around 17 LPA. During the placement drive 2020, the average package offered was INR 6 LPA.

More job offers are made to the civil engineers from companies such as Oil and other related companies. The salary package offered by a few conglomerates like L&T varies from INR 6.2 LPA for IITians, INR 5.11 LPA for NITians, to INR 3.6 for Local/Private Colleges. This is the general trend. It varies depending on the academic year. 

One of my friends studied at NIT Trichy. According to him, there is no specific college uniform that has been prescribed for NIT Trichy except for labs. 

• When you visit a lab on the campus, you will have to wear a khaki uniform that is used by the lab.
• The lab faculty will tell you about it during your first visit to the lab. 
• For the dress code, NIT Trichy has mentioned for the students to follow decent and formal dressing manners in the campus in their students’ code of conduct. 
• And in hostel rules and regulations, NIT Trichy has mentioned that the students should not wear a sleeveless dress while coming to the mess area.

The dress code that is usually followed for classes include Formal shirt/pants or collared T-shirts. Collarless T-shirts and tracks are not allowed.

BITS Goa is better than NIT K/W/T.

• A great factor about BITS is the process of admission is executed based on the merit of the candidates, and not based on the system of reservation which is being followed by many institutions in India. 
• The institution has adopted the curriculum of the courses from MIT.
• The student crowd is very good at BITS. 
• My friend is a graduate of the institution and claims that the infrastructure of the college campus is among the best in India.
• The placement of the institution is also extremely good in comparison with many IITs and NITs of India. The placement statistics of BITs Goa are mentioned in the table below for reference.

Lastly, the choice is yours. You should do thorough research about all these institutions, and choose based on your interests.