Both IIT Delhi and IIT Madras CS are well-known for their CS course. The CS program of IIT Madras is very well-structured and satisfying.

• IIT Madras has reputed faculty members who are experts in different computer science areas.
• The faculty members take an active part in helping students to get cutting-edge research allowing the students to get excellent opportunities.
• IIT Madras CS department is ranked 1st amongst 200 colleges by NIRF ranking in 2023.
• The total cost to pursue CS from IIT Madras is INR 858000 for 4 years and the additional hostel fees are INR 35841.
• CS department of IIT Madras excellent placements to students with the highest package being around INR 1.31 CPA and the average package being INR 10.5 LPA. 

Choosing Chemical Engineering at IIT Kharagpur is a better option as compared to CS at IIT Mandi. IIT KGP is a much older institution with a rich legacy and a stronger alumni network. Other than that, Chemical Engineering at IIT Kharagpur has an active research culture. 

On the other hand, IIT Mandi may not be the best option because of its recent establishment. Although the IIT Mandi placements seem promising, they are nowhere near IIT KGP placements.

Here is a general comparison of the 2 institutes based on several factors-

Based on these factors, I would suggest you choose Chemical Engineering at IIT KGP over CS at IIT Mandi.

As per the latest stats, you will not be able to get admission in CSE at IIT Roorkee at this rank if you are from the general category. I think that you should choose EE at IIT Kanpur over CSE at IIT Roorkee because of the following reasons:-

• Taking EE in Kanpur is more advantageous than CSE in Roorkee due to higher placement percentages and more flexible academics, which helps to let you develop yourself more.
• IIT Kanpur has a better NIRF ranking of 4^th compared to IIT Roorkee 5^th.
• As of 2023, the average salary at IIT Kanpur EE branch is 26.27 LPA, while the average salary for IIT Roorkee's CSE branch is 27 LPA, so there is not much difference.
• More than 250 companies like Microsoft, Fujitsu, Samsung, Reliance, Goldman Sachs, and McKinsey visited IIT Kanpur campus in 2023.
• Electrical engineering provides you with opportunities in both the public and private sectors.
• The best aspect is that if you later discover you have no interest in EE, you can always move to Software Engineering.

Choosing between IIT KGP Electrical, IIT Madras Mechanical or IIT Indore CS should depend on your area of interest, career goals, and preference. All of the IITs offer excellent academic structure which helps to enhance both your theoretical and practical skills.

• However, opting for IIT Madras Mechanical is a better choice as it is one of the oldest IITs and is ranked amongst the top academic institutions in India.
• IIT Madras offers an excellent curriculum and research facilities for the Mechanical department.
• The total course fee for 4 years of Mechanical Engineering at IIT Madras is INR 11.17 Lakhs.
• IIT Madras is known for its excellent placement statistics.
• The highest package is INR 66 LPA, the median package is INR 17 LPA and the lowest is INR 7 LPA.

CS at IIT Indore is better than CS at IIT Hyderabad. Being a student of IIT Indore I can surely help you with some insights on the institution.

• IIT Indore is known for offering well well-structured academic program, research opportunities, and highly qualified faculties who help the students throughout their tenure with the institution.
• IIT Indore offers both BTech and MTech courses for the CS department.
• The average course fee for the first year, full-time BTech course in CS is around INR 2.99 Lakhs.
• The placement scenario at IIT Indore is great with 96.83% of students being placed in the CSE department.
• The highest package is INR 68 LPA and the average package is INR 30.89 LPA.
• Some of the top recruiters are Microsoft, Zomato, Amazon, Capgemini, Qualcomm, and more.

Choosing IIT Delhi Electrical Engineering (Power and Automation) is better than choosing IIT BHU CS as:-

• IIT Delhi is one of the oldest IITs in the nation, it has developed a wonderful reputation for offering well well-structured academic curriculum and research opportunities for the students.
• The institution offers both undergraduate and postgraduate courses in Electrical Engineering, with the average course fee for four years being around INR 10-8 Lakhs.
• The placement records for the department are also very good with around 80% of the students being placed.
• The highest package is INR 70 LPA and the average is INR 16 LPA.