My brother did his M.Tech from NITC. Here is his insight into the general placement scenario for MTech at NITs. 

Over the years it has been seen that the placements for M.Tech students are comparatively less as most of the companies demand B.Tech graduates as the freshers or even experienced candidates. However, in some cases, M.Tech students are considered, like in research and development-oriented jobs. However, most industries prefer B.Tech over M.Tech. 

After pursuing M.Tech your area gets narrower due to which the situation becomes very tricky for both the employers and the candidates applying for. As far as all the colleges are concerned the placement statistics are not so good for M.Tech students.

In the recent placement drives, the average CTC offered at NIT Warangal, NIT Trichy and NIT Surathkal were respectively 21 LPA, 6 LPA, and 11 LPA. 

Having known some people who graduated from NIT Trichy and NIT Warangal I can say that there is no demand for either of these two subjects in the industry.

Both the colleges are of similar reputation in the industry, hence choose the one that suits your location. This will ease your transportation. 

• The students of these institutes opt for CSE, learn programming languages from scratch, willing to be computer engineers in the future.
• They are offered salary packages ranging from 12-24 LPA, depending on their skills.
• Sometimes it rises up to 50 LPA.
• These companies not only check academic credentials but also their TopCoder and GitHub profiles.
• Some even opt to be managers, their jobs demand and value academic credentials.
• They receive salary packages ranging from 15-18 LPA.

The placements at both colleges are good. Make a calculative decision considering the field you are interested in.

Among the above two institutes, NIT Warangal is the definite choice, considering the factors of alumni record, placements, etc. The table below gives a brief level of comparison among the institutes.

Some of the key highlights of NIT Warangal are discussed below. 

• NIT Warangal is in close proximity to Hyderabad city, which gives a location advantage to commute. Also, you will have better placement opportunities since Hyderabad is an IT hub. 
• NIT Warangal has a strong alumni record, which in turn increases placement opportunities for students in various industrial sectors.

In between NIT Warangal, NIT Trichy, and NIT Surathkal, you should choose the institute in which you are getting your favorite branch. But, all of these NITs are far ahead of NIT Calicut. So, choose wisely.

As some of my friends are from NIT Calicut, I might be able to share some information about the college I gathered from them.

• The major reason for the diminishing NIRF ranking is its lack of proper administrative procedures during MHRD document verification.
• The details about the alumni network are really poor.
• Another reason is the college is trying to maintain its age-old legacy by keeping the infrastructure as it is.
• They are rarely repaired, There is no construction of new buildings.
• Even the facilities are old and are not replaced by modern technologies.

If you think that the drop in the rankings is because of the quality of education, faculty, or placements, let me assure you that it is not. Because NIT Calicut is still considered among the top 4 NITs. 

Before beginning with the answer, you should know that the score you have got is quite good and there are chances of you to get a seat in NIT Trichy. 

Here’s the process of NIT Trichy:

• Firstly, it is close to impossible to get a seat in CSE during the primary counseling of CCMT. 
• Moreover, the spot round can provide you with a seat for CSE Information Security in NIT Warangal. 
• Furthermore, after enrolling you have an option for internal sliding rounds in which there is a probability of getting a seat in the CSE branch. 
• If not that, then the college itself will release the number of seats on the website for the students who are still interested in enrolling.

On the other hand, there is a high possibility that NIT Warangal also has the same procedure but my brother wasn’t sure about it.