I know a little bit about ISI Kolkata since I have a few friends from the institute. Here is what you should know about the internships between semesters. 

The course curriculum specifies that in the summer after completing your first year of M.Tech, you have to do an internship either in the industry or academia. You will have 3 options. 

Industry:

• Many companies that visit the Campus for placements of 2nd-year students also select interns for the same.
• Some of such companies are Samsung Research Labs, Google, General Electric, Reliance, Flipkart, De Shaw, JP Morgan Chase, etc.
• The average stipend offered last year was 65,000 rupees/month.
• Some companies offer more than 1 lakh/month. One of my friends interned at Samsung Research Labs.

Academia:

• As per ISI guidelines, you need to pursue an internship at a different academic Institute or industry.
• A friend of mine went to NUS Singapore, while two others went to a university in Germany. You can also apply to other institutes in Japan, USA, and Europe. People also go to IITs, CMI, and other Tier-1 Institutes of India.

Within ISI:

If for some reason you could not get an internship in the above-mentioned ways, you can approach any of the 250+ faculty members across all 5 ISI‘s and can ask to work with them in their labs.

You will have internships at the end of the first year. In the second year, you will have placements, dissertation, academics. So, the only time left to do an additional internship is the winter break after the first sem. Unless you are extremely enthusiastic, I will suggest that you take a break during this period. Because after the break you will be swamped with coursework for 1.5 years.

Yes, you have a good chance of becoming eligible at NIT Trichy. Since your score is what you have mentioned above, it translates to your rank being somewhere 1,000 or 1,200. As per your rank, you have a sharper edge at securing admission in the CSE department of NIT Trichy. 

However, here is a detailed cut-off list of NIT Trichy for equivalent disciplines, alongside CSE as well:

Apart from this, you can also vividly research more about other rounds, and categories, at your convenience. Hope this helps answer your question, wish you all the best!

If NIT Trichy is your only option, then you can go for it. But for Civil Engineering infrastructure can be a vital factor. 

The budget that usually is allocated for infrastructure incorporates buying lands from peasants to fund the research later on with a low-cost housing or environmental impact assessment. 

If you have chosen Civil Engineering, based on your electives, you could opt to specialize in Hydraulics engineering, Structural engineering, Environmental engineering, Building materials, Geotechnical Engineering, Transportation Engineering, Construction Management, Infrastructural engineering, and other relevant disciplines. 

It is best to get familiar with the topics briefly noted above. Based on your knowledge and expertise, choose one (or more, if required) of the many specializations and then do a brief research on the basic amenities, like faculty strength and similar aspects of NIT Trichy. 

However, in terms of academics, NIT Trichy is an excellent choice.

The hostel facilities provided in NIT Trichy are excellent. There are many hostels in this college but the best hostel for the students is the Diamond hostel. 

• Diamond hostel: The facilities available inside this hostel are amazing and the ventilation available inside the rooms is top class. The hostel is located in a very good spot with the mess, canteens, and lecture halls are nearby. There are also two well-maintained rooms which are specially made to play table tennis.

There are some other hostels too inside the NIT Trichy campus which are as follows.

• Agate: The location of this hostel is excellent but there are a lot of issues with the wifi speed and the ventilation available is not good.
• Jade: This hostel is also very good and is above average in everything except for the location of the lecture rooms and the canteen is very far away from the hostel and it is a big disadvantage.
• Coral: The location of this hostel is as good as agate but the condition of the rooms inside this hostel is very poor.

Before choosing a room, do check out the wifi speed personally as slow wifi speed can be very frustrating and it consumes a lot of time while accessing the internet. 

The classes at NIT Trichy start at 8:30 AM and lasts till 5:10 PM. There will be classes in two phases. The timing for morning classes is from 8:30 AM to 12:10 PM and for afternoon classes it is 1:30 PM to 5:10 PM. 

On some days, afternoon classes will be canceled and only the morning classes will be conducted. The number of cancelled classes depends from department to department. The CSE department has a lot of cancelled classes and you would be free by 3:30 PM. But this is not the case with EEE & ECE departments as here all the classes are conducted regularly. 

If you are residing in these hostels Garnet, Agate, Coral, Diamond then you can wake up before 5-10 mins of classes as it is located nearby to the lecture halls and you can easily reach on time. But if you are residing in Amber or Opal hostels, you will have to wake up at least 30 minutes earlier to attend the classes on time as the rooms are very far from the lecture halls. 

The timing for hostels depends upon the class. For 1st year boys, the entry timing is till 9:30 PM and for others, there are no such fixed timings and you can come at any time. But for girls, the timing is only till 9 PM and there is no exception in timings for anyone.

It's the case not just at NITT, but everywhere. It entirely depends on the visiting firm and whether they value your school percentages. 

The placement cell will have all of your information entered into their placement portal, and they will be aware of everything, so if you give the firm an erroneous résumé, whether intentionally or unintentionally, they will be notified. Because there are so many students, your college will try to set minimum eligibility standards for them by requesting or something similar. 

To make things clearer, I'll give you an example. 

1. Let's say Amazon Cloud is on the way, they've left the pointer criteria at 6, with no criteria in the 10+2 range.
2. Deloitte arrives on the second day and demands 60+ in 10+2+3.You won't be able to do anything because Deloitte does it all throughout India. Colleges don't matter as per their rules.

However, if a random startup comes along and offers a nice, attractive package and has policy rules similar to the ones listed above. But the placement cell can request them to ease the criteria if students have low scores. It now hinges on the company's reputation. It is applicable to every institute.