Every Institute has its unique aspects as well as its own strengths and weaknesses. Some factors to consider include the quality of the faculty, the resources available to students, the research opportunities, and the campus culture. 

IIT Roorkee, BITS Pilani, and IIT BHU CS are definitely excellent but IIIT Hyderabad wins the race when it comes to CS. It’s second only to IISc Bangalore, IIT Bombay, and Madras. Because of only 2 branches, the entire focus of the Institute is on CS only. The opportunities, ambiance, and faculty are aligned with the requirements for a good CS branch. Another good option is IIT BHU because of its high ROI.

Having known a few friends in all 4 institutes, I can confidently say that those who chose IIIT Hyderabad CS over IIT Roorkee are doing better now. The IIT tag certainly is helpful but only to a limited extent. The exposure provided by IIIT Hyderabad and its excellent placement opportunities overshadows the much coveted IIT Tag making it a better choice among all institutes. But those looking for stability, facilities, academia, and vast opportunities can go for IIT Roorkee.

To draw a specific comparison between the 3 B Schools you have mentioned I will simply compare their placement statistics in a tabular form.

Among these IIT Hyderabad is the best option for pursuing an MTech CSE. It offers a better environment, quality education, and amazing research culture. According to the highlights of IIIT Hyderabad MTech placements 2021, the average CTC offered for the CSE department was INR 23 LPA. 

Due to these factors, IIIT Hyderabad is better than new IITs like IIT Roorkee and IIT Hyderabad, for CSE. 

Both IIT Roorkee and NIT Surathkal are highly reputed institutes, and both have good placement records for their MTech in computer science programs. However, based on the available data, IIT Roorkee has a slight edge over NIT Surathkal in terms of average placement packages.

In the most recent placement season, IIT Roorkee had an average placement package of around Rs. 16 LPA for its MTech in the computer science program, with companies like Amazon, Goldman Sachs, and Microsoft visiting the campus for recruitment. On the other hand, NIT Surathkal had an average placement package of around Rs. 13 LPA, with companies like Microsoft, Intel, and Deloitte visiting the campus for recruitment.

Both IIT Roorkee and NIT Surathkal are excellent choices for an MTech in computer science, and students can expect good placement opportunities from both institutes. However, based on the available data, IIT Roorkee seems to have a slightly better placement record for this program.

Comparing the different IITs and their branches is a complex task, as there are various factors to consider.

Firstly, in terms of college life, both IIT BHU and IIT Mandi have their unique characteristics. IIT BHU has a rich history, with a large and diverse student population, while IIT Mandi is known for its serene location and a close-knit community of students. The campus life of both these institutes is quite active, with various clubs and societies organizing events and activities throughout the year. However, the experience of college life is subjective, and it ultimately depends on an individual's preferences.

Regarding placements, both mechanical and electrical engineering are considered core branches, and hence, have good placement opportunities in their respective fields. IIT BHU has a well-established reputation in the field of mechanical engineering, with several companies recruiting students for internships and full-time roles. Similarly, IIT Mandi has seen significant growth in its electrical engineering department, with several reputed companies such as Microsoft, Amazon, and Texas Instruments recruiting students.

IIT Roorkee is another top-ranked institute, known for its excellent civil engineering department. Civil engineering is also a core branch and has decent placement opportunities in the industry. However, compared to mechanical and electrical engineering, civil engineering is considered to have relatively fewer job opportunities in the private sector. Nonetheless, IIT Roorkee has a good track record of placing students in reputed government organizations such as CPWD, NBCC, and DMRC.

Both IIT BHU Mechanical and IIT Mandi Electrical have excellent placement opportunities and active campus life. However, choosing between the two ultimately depends on an individual's interest and preference. Similarly, while IIT Roorkee Civil has good placement opportunities in the government sector, it may not have as many options in the private sector compared to the other two branches.

BITS Pilani and IIT Roorkee are on the same category, while IIT Guwahati ranks below these institutes. If you are a CSE enthusiast, BITS Pilani will be the best option among these. Top MNCs like Google, Amazon, Goldman Sachs, etc. visit the campus placement to recruit. The recent highlights of BITS Pilani placements, show the average CTC for CSE to be around INR 18 LPA. 

If you aren’t sure about your branch preference, choosing IIT Roorkee will be better. The IIT Tag can be quite beneficial. For branches like Civil, Mechanical, Electrical, etc. usually IIT students have better technical knowledge compared to BITS students. 

BITS Pilani offers an enviable campus experience. Students are given the freedom to study and explore anything they want. 

Out of all the institutes you mentioned, IIIT Hyderabad steals the limelight owing to its excellent CS branch. Here are a few reasons why I consider IIIT Hyderabad better than IIT Roorkee, BITS Pilani, and IIT BHU.

• Located in the IT hub of India, IIIT Hyderabad attracts all the IT giants of the country 
• It gives an edge to older IITs because of its prime location and close ties with the industry
• Excellent exposure is provided to the students at IIIT Hyderabad in the form of hackathons, workshops, seminars, and much more. 
• Students benefit a lot from the frequent collaborations of IIT H with IIIT H.
• IIT Hyderabad has a unique Fractal Academic System, and its curriculum is improvised to suit industry requirements and research trends. 
• IIIT Hyderabad students are taught subjects related to their domain right from the first year, unlike IITs that teach common fundamental courses in the first year.
• Regular evaluations keep your academic performance in check 

Additionally, what may be the "best" institution for one person may not be the best for another. So it’s better to follow where your heart goes.

For Civil Engineering, IIT Roorkee will be a better option compared to IIT Delhi. It used to be a Civil Engineering college, before becoming an IIT. It is also one of the oldest Civil Engineering colleges on the continent. Naturally, IIT Roorkee has a better brand name in the Civil Engineering industry. Students of the branch get a lot of opportunities to visit and practice in nearby industry projects. 

The highlights of IIT Roorkee Civil Engineering placements show the placement rate is 90%. The highest CTC goes up to INR 35 LPA.