Booking a visitor hostel at IIIT Allahabad is simple. 

You are only required to send an email to the Deputy Registrar (Finance and Accounts) and put Caretaker Visitor Hostels to CC

The mail should follow the standard format for any official mail and should include your personal details. 

However, if you are a prospective student and are likely to take admission for any year, then stating relevant details about the same will be good too. It can entail anything from your JEE roll number to any other particular ID you are expected to submit. Besides, also state your need for accommodation during the period of your admission process.

If you do not receive a response, you can ring any relevant person up using the telephone directory of the institute.

Among the institutes mentioned, IIIT Allahabad is a better alternative for Bioinformatics. One of my friends was also going through this same situation a few years back and he chose IIIT Allahabad. His experience at the institute has been quite good over the past 4 years. 

The table shows a brief overview of the institutions.

Highlights: 

• IIIT Allahabad is a premier institute renowned for its IT branch. 
• Every year around 85% of students get settled with their dream jobs. 
• BI students also go for IT companies and get placed respectively. 
• Core Bioinformatics companies don't visit the campus usually, but product-based companies like Amazon, Directi, etc offer handsome packages. 

Overall, IIIT Allahabad is the potential choice as the faculty and infrastructure are good and all the previous year’s students have been placed with good packages. 

My brother is currently studying IT at IIIT Allahabad and according to his first-hand experience and your interest in IT, the order of preference for you should be:

IIITA>MNNIT>BITM>MANIT

It is because if you are genuinely interested in IT then IIIT Allahabad is the best option you can choose because of the following key points:

• The campus is well equipped in terms of infrastructure and facilities and the coding culture is quite good there. Also, it is an institute specifically made for IT, so the infrastructure is planned according to it.
• The course structure at IIIT Allahabad is also strikingly different from what you'll find at any other engineering college in India. It focuses a lot on programming and electronics-related subjects, right from the first year itself.

In NITs, you need to study a lot of subjects not at all related to your branch or course!

However, MNNIT or BIT Mesra may prove to be better options in case you realize that computers are not your cup of tea and decide to go into the non-tech sector. You will have a lot of diverse companies visiting these campuses, while in IIIT Allahabad you’ll see only IT companies coming to recruit.

Also, JEE Main rank of all the options you mentioned will differ from each other. So your rank also plays a major role in selection.

If you are concerned about the brand then definitely go for IIIT Allahabad. But, if you are clear with your choice of stream you can choose either of them. If you choose NIT Jamshedpur CSE it’s good and so is the same with IIIT Allahabad. 

I can share one of my cousin’s experiences, who passed out from NIT Jamshedpur.

• When he cracked the JEE with decent marks and got a chance to opt between these two colleges; he chose NIT Jamshedpur CSE over IIIT Allahabad comparing few factors like placements, exposure and money plays a vital role here.
• It is all up to you whether you want a tough competitive exposure or a light and cooperative environment.

Let me make it more clearly for you by categorizing engineering colleges:

This categorization might help you to decide. Also, skills do not depend on the branding of the building. It is something you learn eventually. Moreover, choose a college which has easy access to transport, shops, etc.

Also, if you see around there is infinite demand for highly skilled electronics engineers with impressive TopCOder and GitHub profiles. So, choosing either of the colleges won’t be a loss. But, if you have a specific interest in a particular stream like ECE in IIIT Allahabad or NIT Jamshedpur will prove a good choice too.

If you go through the placement brochure, you will come to know about other significant details such as the campus life, coding culture, and also the placement procedure.

If you look through the official website of IIIT Allahabad, you will come across the following data:

Note that they provide information only about the average salary and the highest salary. There is no information regarding the median salary on the official website.

There is a difference between average salary and median salary. Average salary is the sum of the salaries of all the students divided by the number of students. This includes the highest salary as well and therefore, can be higher. The median salary is the salary that is exactly in the middle of the list of salaries of all the students. Half of the students will be above it and half will be below it. Hence, the average salary is generally higher than the median salary.

I have a few friends at IIEST and based on what I heard I can say that conclusive developments are taking place at IIEST Shibpur for the CSE course. Projects under the supervision of esteemed faculty were introduced in the second year. The curriculum has been improved to become one of the best in India.

There are also visiting faculty from foreign universities such as Harvard and so on. At present, the faculty is working on projects worth crores.

Abroad Internships are available to CSE IIEST students as early as in the first year.

The CSE department at IIEST is now significantly better than that of top NITs. So in short, IIEST Shibpur CSE is the better alternative.

Joint Seat Allocation Authority (JoSAA) offers the seat matrix for all the IIITs in India. For IIIT Allahabad, the following is the seat matrix for the academic year 2020-21:

Therefore, there are a total of 250 seats in Information Technology.