It’s illogical to compare two programs as the choice of branches depends on individual preferences. I will share the limited knowledge I possess for IIT Hyderabad CSE.

• IIT Hyderabad CSE department is very dynamic and rigorous. 
• The CS department has excellent professors that are very learned and experienced.
• The student crowd comprised good quality students most of them being top rankers. There is tough competition between peers maintaining the dynamic academic environment.
• The average package for CSE in IIT Hyderabad is the highest of all the other branches, with many international offers too.
• As far as higher studies are concerned, if you plan to do an MS abroad, every year a lot of students get admitted to highly reputed foreign universities like Stanford, UIUC, Georgia tech, and ETH Zurich.

Since I have no information on IIT Guwahati, I recommend you contact a senior and discuss basic details.

B.Tech in AI(Artificial Intelligence)

This course is somewhat similar to CSE except that you’ll be mainly studying courses on machine learning and AI. Students of this program have to be proficient in Maths, ML, DL, etc. These courses are compulsory and you will be assigned projects on the same topics.

B.Tech in CSE

Under this program, you will be studying CSE subjects like databases, operating systems, networks, computer architecture, etc. IIT Hyderabad’s fractal system will let you take AI subjects and work on areas of ML and AI as well. So you are free to choose your research area.

Ultimately, you should determine what interests you and then only decide what to take. It’s better to research everything before making the final decision.

To make the best choice, I have entailed the pros and cons of both the institutes 

IIT Guwahati Pros

• A very established and beautiful campus that is on power backup

IIT Guwahati Cons

• Less academic flexibility in choosing courses
• Locational disadvantage results in less exposure to expert lectures 
• Major issues related to connectivity with high airfare
• Professors are very less motivated in delivering quality lectures due to lack of motivation.

IIT Hyderabad Pros

• Locational advantage results in better connectivity and excellent exposure to industry and experts
• More academic flexibility owing to the fractal academics
• Young and enthusiastic faculty members who have great experience and conduct top-notch research 

IIT Hyderabad Cons: 

• The permanent campus is still under construction.
• Relatively hot climate.

IIT Guwahati should never be your first choice and IIT Hyderabad is a much better option.

Except for BITS Pilani, CSE at Thapar is far superior to any other university.

Chandigarh University does not offer better placements or opportunities. It's all just public relations to boost the college's image.

Thapar Institute of Engineering and Technology, on the other hand, is one of India's most prestigious and best engineering institutes. In the NIRF Government of India rankings, Thapar Institute of Engineering And Technology was ranked 23rd. For the last six years, the placement rate has been consistently higher than 90%. A total of 361 recruiters took part, recruiting 1622 students. Students were offered the highest package of INR 40 LPA, while the average package was INR 10.97 LPA.

Thapar University accepts students based on their JEE scores.

All three colleges, IIT Dhanbad, IIT BHU, and MNNIT Allahabad, are well-reputed and offer quality education in their respective fields. However, the choice between the three ultimately depends on your personal preferences and career goals. Here are some points to consider:

IIT Dhanbad (CS):

Pros:

• One of the top-ranked engineering colleges in India.
• Strong faculty with research expertise in various fields of Computer Science.
• Good industry collaborations and placement opportunities.

Cons: Relatively new compared to some of the other IITs, so may not have as established an alumni network.

IIT BHU (Electrical):

Pros:

• One of the oldest and most prestigious engineering colleges in India.
• Strong faculty with research expertise in various fields of Electrical Engineering.
• Good industry collaborations and placement opportunities.

Cons: As an Electrical Engineering program, it may not have as many opportunities to specialize in Computer Science.

MNNIT Allahabad (CS):

Pros:

• One of the top-ranked NITs in India.
• Strong faculty with research expertise in various fields of Computer Science.
• Good industry collaborations and placement opportunities.

Cons: May not have as established an alumni network compared to the older IITs.

Based on the above factors, it would be recommended to consider IIT Dhanbad (CS) as the best option among the aforementioned colleges.

Branch-wise, you won’t find many differences as the curriculum and courses covered are almost similar. However, the overall ambiance and exposure offered us better at BITS Pilani. Here are a few points to support my stance

• BITS Pilani has 2 internships of its own. This is an extremely crucial point as the government has made 3 internships compulsory for engineering students in order to secure a good job.
• Another plus point of BITS is its extremely flexible curriculum with a plethora of electives to choose from. Additionally, there are open electives from other branches that lets you explore beyond your branch and broaden your horizons.
• A few tech giants prefer visiting only IIT Bombay, IIT Delhi, and BITS Pilani.
• BITS Pilani has an excellent peer group with some students who have cleared prestigious competitions like GSOC, and ACM ICPC. You will find yourself surrounded by top rankers around 1000 AIR in JEE Advance.
• The alumni pool is extensive and constantly supports the institute.
• BITS Pilani has got the tag of Institute of Eminence tag making it eligible to collaborate more with foreign universities and carry on student and faculty exchange programs freely. 

Ultimately, there is no right choice, and choosing one over the others is completely a personal choice. Either way, you will lose and gain something!