You can decide if IIT BHU is really the worst IIT after going through my answer. I have tried my best to state all fair points and stay unbiased as much as possible. 

• Generally, all IITs suffer from a shortage of faculties whereas IIT BHU has a sufficient number of experienced faculty members.
• The professors are high quality and you cannot doubt the parity of teaching here. The recruitment style is similar in all IITs so the faculty pool is similarly skilled.
• IIT BHU has student-run clubs that provide complete exposure to management and students learn to deal with serious situations and be responsible.
• The course structure of IIT BHU is relatively flexible giving students freedom to explore their interests and not spend time just mugging concepts. Many IITs have very rigid curricula limiting the students' exposure. 
• IIT BHU no doubt is lacking in terms of infrastructure and facilities but for someone who focuses on the bigger picture, this might not seem to bug a factor to consider. Additionally, there have 
• IIT BHU has excellent sports facilities and you can find almost every game being played here.

IIT BHU is great in all aspects and its alumni are successfully working in big companies. This alone is enough to negate the point that IIT BHU is the worst IIT.

No, I don't agree with you. My friend was a student at IIT BHU and still reminisces about her time spent in Varanasi. Although she is staying in New Delhi currently a part of Varanasi still stays with her she misses the pollution-free air of Varanasi and the scenic moments she spent by the river. 

Her current life in Delhi is very urban and fast-paced and she misses the tranquility of Varanasi. So it is untrue that you will feel bad about staying in an old city with no good places to hang out. Every city offers a unique experience and so does IIT BHU. You need to come prepared for all this.

IIT (BHU) has a long list when it comes to successful and famous alumni. Some have already been mentioned- Nikesh Arora, Gyanesh Pandey, Vinod Kumar Bansal, P.M. Ajayan, Sandeep Pandey, T. Anantharaman, and Varun Grover.

Other famous alumni from IIT (BHU) include-

• Nandita Sinha - Nandita Sinha is the CEO of Myntra, since January 1, 2022. With Nandita Sinha’s appointment, Flipkart got its first female CEO. She pursued her Ceramic Engineering degree from IIT(BHU) and graduated in the year 2003. She holds 15 years of experience across E-commerce and FMCG. Her area of expertise is P&L management and marketing

• Nikku Madhusudhan- Madhusudan completed his B.Tech in Mining Engineering in 2002 and went on to pursue his MS from MIT (2004) and finally his Ph.D. at MIT (2009). He gained fame and recognition after his discovery of a diamond-studded planet in 2012

• Ram Charan- ( BTech in Mechanical Engineering- 1959) Ram Charan went on to pursue an MBA (1965) and a Ph.D. (1967) at Harvard Business School. Charan is an Indian American business consultant. He is among the most prominent business consultants and has regularly been featured on the Thinkers’ 50 List. Charan has coached some of the most well-known and successful CEOs and for more than 35 years, he has worked for companies like Dell, GE, KLM, and Bank of America, among others 

• Thomas Anantharaman- Thomas Anantharaman’s father, TR Anantharaman, was one of the finest materials scientists and former director, of IT-BHU (IIT BHU). Anantharaman’s brilliance was marked by his AIR 2 in the IIT-JEE 1977 examination. He obtained his B.Tech degree in ECE in 1982. He is best known for his work on the Chip Test and Deep Thought on chess-playing computers at Carnegie Mellon University as his Ph.D. dissertation. Anantharaman’s work laid the foundation for the IBM chess-playing computer Deep Blue.

• Deepak Ahuja- Deepak Ahuja did his B. Tech in Ceramic Engineering (1985). , his MS in Materials Engineering from Northwestern University (1987), and his MBA from Carnegie Mellon University(1993). He was the former CFO at Tesla. In 2010, after Tesla’s successful IPO, he was named Silicon Valley Business Journal’s CFO of the Year.

1. Sridhar Manthani: Manthani is a well-known technology entrepreneur and investor. He did his B. Tech in ECE (1982). He was the Senior Director at NVIDIA's Bangalore Design Centre. Before this, he was the Vice President of Engineering for S3 Inc. Under Manthani’s leadership, his business unit made revenues of $500 Million. Presently, he is the Co-Founder and Chairman/CEO of Streamoid Technologies Inc. He also worked for Intel and Western Digital. Sridhar’s field of expertise is software development processes and personnel growth. 

The list of well-known alumni from IIT-BHU is endless. These were just a handful that inspired the youth and intelligentsia with their success and achievement in various fields.

IIT BHU is located within the Banaras Hindu University campus and is an excellent place for academics that has a very good placement record. Here are some facts related to IIT BHU:

1. The course curriculum at IIT BHU works to equip students with skills as per the current industry demands
2. IIT BHU has various clubs- Robotics Club, Aeronautics Club, and others that conduct sessions frequently for a hands-on experience of different innovative projects
3. The faculty at BHU is very supportive. A tie between Amazon and BHU for sponsored labs on campus has allowed students to be better exposed to current technologies and innovations
4. For students who are interested in core domains, there are plenty of companies that visit the campus for core placements, including PSUs
5. IT students get great placement opportunities as all big MNCs and fastest-growing startups visit the campus for placements
6. IIT BHU’s location makes it desirable. It is located in the spiritual city of Varanasi
7. IIT BHU is a very old institution and of which its infrastructure needs plenty of improvement. Also, the hostels are very congested with small rooms

To conclude, IIT BHU is a very old and well-established institution that offers very good placement opportunities and has a good academic curriculum (excellent as per some, decent as per others). However, the infrastructure is very old and needs significant improvement.

Calling IIT BHU, one of the oldest IITs, worst is outright defamation and its alumni won’t tolerate it. I suggest you research its Campus life and facilities, quality of education, hostel facilities, placements, and research culture. Only after proper research will you realize that the claim you made is false and the word worst does not sit with the legacy IIT BHU has. In fact, it has worked hard to earn the reputation and the IIT tag it has today.

• IIT BHU average package is comparable to that of the top IIT, IIT Bombay
• IIT BHU has the largest alumni network considering it’s a very old institute
• It carries the culture of Kashi beautifully
• IIT BHU is a tough competitor in inter IIT events
• IIT BHU has high cutoffs to ensure the standard of education and crowd is maintained at par with top IITs.

Even after considering the above points will you say that IIT BHU is the worst IIT?

Yes, IIT BHU conducts a written test for MTech admission. The M.Tech./M. Pharm candidates are shortlisted on the basis of their GATE scores. The final selection is made on the basis of GATE score, written test, or interview or on the basis of any combination of these 

So yes, IIT BHU Varanasi holds a written test followed by an interview as a part of the selection process.