IIT Kanpur has several advantages over IIT Delhi. A few are mentioned below:

• Unlike IIT Delhi, branch change facility is not restricted to the first year only and one can change branches even after the 2nd year 
•  IIT Kanpur offers an enriched campus life with great relations between students as well as students and faculty. 
• There are no LAN restrictions at IIT Kanpur whereas, IIT Delhi restricts usage of LAN from 1 a.m. to 6 a.m. 

Lastly, once you enter IIT, your branch rarely matters. Your placements solely depend on your CG, your skills, and the efforts you invested throughout. So, go for a branch that matches your area of interest and you are good to go.

Both IIT Delhi and IIT Kanpur are well-respected institutions in the field of engineering and technology. They are both ranked among the top engineering colleges in India, and they have a reputation for producing successful graduates. However, while choosing between the two you can consider the following aspects 

1. Ranking: According to NIRF rankings, IIT Delhi stands in the second position while IIT Kanpur is in fourth. So IIT Delhi enjoys a better reputation and preference rate than IIT Kanpur mainly because of its location.
2. Course: IIT Kanpur offers an abundance of courses to choose from. It has 8 B.Tech programs; 13 M.Tech programs; several dual degrees; B.Sc and M.Sc; Ph.D. programs and M.Des. (Master of Design). The courses are well-structured with a better grading system than IIT Delhi and thus in this aspect, IIT Kanpur is surely the winner.
3. Placements: The placement scenario at both the IITs are somewhat similar with IIT Delhi at a slight advantage owing to its location. The table below gives the statistical differences between placements of the 2 institutes 

Particulars	IIT Delhi	IIT Kanpur
Number of Recruiters	400	181
Highest CTC	INR 4 CPA	INR 1.9 CPA
PPOs	260	208
Top Recruiters	Jane Street	Google, Airbus, SLB, Capital One

       4. Alumni network: Both IIT Delhi and Kanpur have equally good alumni like N. R. Narayana Murthy and Manindra Agrawal from IIT Kanpur and Sanjay, Binny Bansal, and Chetan Bhagat from IIT Delhi.

       5. IoE: One interesting aspect that sets IIT Delhi apart from IIT Kanpur is its Institute of Eminence (IoE) Status, under which the Institute can make its own decisions regarding course structure, infrastructure, fees, etc. This is unique and only IIT Bombay and Delhi are the IITs that enjoy this status as of now.

Both the IITs are unique in their way with their strengths and weaknesses. Ultimately, the ‘better institute’ is more of a personal choice and depends on many factors. If I were in your place, I would have certainly taken IIT Delhi mainly because of its prime location.

Aerospace Engineering can be further divided into four parts 

• Aerodynamics - An extension of fluid mechanics 
• Structures - All about mechanics of materials
• Propulsion - A good base in aerodynamics will help you 
• Controls and dynamics - Mainly used for navigation 

Apart from this there is a lot of Math involved in the curriculum.

The aerospace engineering branches of all the institutes you mentioned give an edge to each other and are equally good. The choice should be based on personal preference, accessibility, campus life, academics, extracurricular activities and placements.

IIT Kharagpur: Pros

• Massive and surreal campus 
• Less academic burden
• Good faculty pool with experienced professors that are easier approachable.
• Companies like Airbus, GE, Honeywell, Altair, Rolls Royce, etc come for placements in the core sector.
• Some of the students go for higher studies in foreign universities like Purdue, Texas A&M, University of Texas, Austin, etc
• IIT KGP offers the Boeing Project wherein a team of 5 fabricates all parts of an Unmanned Aerial Vehicle (UAV). On clearing the selection procedure, you will also be offered a scholarship of about 10k per month for an entire year.
• I am not gonna mention any of the institutional activities (clubs, societies, fests etc.)because I reckon the scenario will be pretty much the same in all the aforementioned colleges.

IIT Kharagpur: Cons 

• It’s not easily accessible to students from Western and Southern States.
• Kharagpur is a town and lacks many amenities apart from its large railway station.
• Mess food is not good at all
• The huge campus delays the time taken to reach the academic area.
• The core companies only select the best students and a major portion of the batch has to go for non-core placements.
• Aerospace Engineering in India has very few job prospects though we expect the scenario to improve a bit 
• You can also apply for off-campus placements at DRDO or ISRO.

Judging a branch solely on the basis of placements is misleading. Yet, most students end up with decent jobs. The best part is that the course curriculum of aerospace engineering is intriguing and keeps you hooked.

IIT Kanpur and IIT Bombay are the top 2 IITs in India with IIT Kanpur giving an edge to IIT Bombay. The only aspect of IIT Bombay that is better than IIT Kanpur is its metropolitan location. In almost every other aspect, IIT Kanpur is way ahead.

• After IITKGP, IIT Kanpur has the biggest campus in India, approximately 1100 Acres. IIT Bombay on the other hand is half the size of IIT Kanpur around 560 Acres.
• IIT Kanpur is the only institute in India to have its own Airstrip, Hangar, Glider pilot licensing system, and National Wind Tunnel Facility.
• The huge Open Air Theatre has the capacity to accommodate 3000 people at a time.
• World-class sports facilities.
• The problems of the students are catered to by the largest counseling service.

IIT Kanpur and IIT Bombay are not even comparable given the advantages IIT Kanpur has over IITB.

When choosing between IIT Bombay and IIT Kanour for CSE, you must decide to go with IIT Bombay for the following reasons:

• There are many students from Kanpur and near Kanpur who choose IIT Bombay because they want to live independently, and develop their personality.
• Kanpur is not as developed as Mumbai, and choosing Kanpur will slow down your progress significantly in some or the other way.
• IIT Bombay is a natural choice for top JEE rankers and if you speak to the seniors or alumni, everyone else will suggest that too. 
• Comparing institutes is not a good idea, but comparing cities is important since you'll be spending about 4 years there. 
• IIT Bombay has better placements, infrastructure, environment as well as faculties. 

Therefore, CSE at IIT Bombay is the better option over CSE at IIT Kanpur.

Below are the details of IIT Kanpur: 

• Knowledge aspect: Experienced professors are available for each domain, including finance, marketing, analytics, operations, strategy, and human resources.
• The aspect of placement: The highest salary offered is 22 LPA, with an average salary of 16.6 LPA. In comparison to last year, the average salary increased by 22%.
• Fees: The total cost of a 2-year program (tuition fees + hostel + mess) is INR 2.8 L - 13.1 L.
• Ranking: According to the NIRF listing 2022, IIT Kanpur is ranked 20th in the management category.

Below are the details of IIM Sirmaur:

• Knowledge aspects: It provides a two-year full-time, regular, a residential sectoral MBA program with a specialization in Tourism & Hospitality Management. There are six trimesters, with three trimesters in each academic year.
• Placement aspects: It has kept its 100% placement record, with a 29% increase in the Average Package of INR 12.74 LPA and a 66% increase in the Highest Package of INR 26.5 LPA.
• Fees: A two-year program will cost INR 1,575,000 in total (tuition, housing, and meals).
• Ranking: According to the NIRF listing 2022, IIM Sirmaur is ranked 69th in the management category. 

Below are the details of IIM Jammu:

• Knowledge aspects: The faculty members are phenomenal. They are extremely helpful and knowledgeable. The majority of them have taught at previous IIMs. Aside from the faculty, the institute has a decent culture.
• Placement aspects: The highest package is INR 32 LPA. The average and median packages are INR 13.53 LPA and INR 11.4 LPA, respectively.
• Fees: The total tuition fees are ?13.2 L - 30.11 L.
• Ranking: According to the NIRF listing 2022, IIM Jammu is ranked 36th in the management category. 

You should get your MBA from IIT Kanpur as soon as reasonably practicable. Don't be swayed by the IIM label.