Yes, you certainly made the right decision by choosing IIT Roorkee over IIT Patna. The biggest reason for saying this is that IIT Roorkee is an older IIT, thus having better opportunities, alumni, and experienced faculty. The career opportunities and exposure rendered by an old IIT cannot be compared to that of a new IIT. Irrespective of the branch you choose, old IITs will help you develop as a person. 

Additionally, the IIT Roorkee Civil Engineering branch is considered one of the best Civil branches in India. 

Many students prefer average branches like Mechanical and Civil at old IITs to top branches like CSE and EEE at new IITs. So go for IIT Roorkee without any second thoughts.

If your rank is more than 1000, you’ll probably not get CS/ EE in any good IIT. But if you still wish for an IIT tag, I would recommend you go for a more relaxed branch. This means, picking the branch with the lowest closing rank. I am saying this because apart from the CS/EE/Mathematics group, all the branches come under the category of “others”. Unfortunately, all these “other” branches are equally placed.

• The coursework, curriculum, and labs are very bland, boring, and outdated. With these branches, a good CGPA and extracurriculars will be the saving grace for your resume. 
• A lower branch will allow you to secure good grades more easily and you will get time to pursue extracurriculars. 
• By doing courses on Coursera and Udacity and making open-source contributions, you can become skilled and learn in coding/programming. Through various online platforms, you can get in touch with software companies in the valley. 

If you are passionate about a field, be it Mechanical or Chemical, definitely go for it. With a passion for your field, you will secure a good core job or can even plan your Phd. in that domain. I would also recommend you check the integrated MSc. courses in Mathematics/Statistics/Physics. They might be a better and more beneficial choice.

As far as NSIT/DCE/NITs are concerned, I would recommend you talk to some seniors from the CSE/EE branch to get a better idea. Otherwise, go for a lower branch in the IITs if you do not get a “top notch” branch at them.

For EE/EEE, out of NIT Surathkal, NITW, NIT Trichy, MANIT Bhopal, MNNIT Allahabad, NIT Calicut, and MNIT Jaipur, I would suggest three institutes in the following order of preference-

1. NIT Surathkal
2. NIT Trichy
3. NIT Warangal

My best friend is studying EEE at NITK and he is quite happy with the department. The teachers in the department are a bit strict. But if you bring up a good project idea and stay attentive in their class, you’ll be in a good position. Also, scoring good grades can be a bit tough, but with hardwork and good preparation, you will surely ace your exams. 

In terms of EEE placements, NITK, NIT Trichy, and NITW are all equally good options.

As a NITK student, you will get certain benefits. These are-

1. NITK is the only institute in India to have a private beach.
2. Among the three institutes that I have listed, NITK is the most suitable for people from other parts of India. Even though there is a 50% state quota, you will find plenty of North Indians and people from other parts of India. You will rarely face a language barrier because most people on campus understand English.
3. You can showcase your technical skills at the IEEE technical club of NITK.
4. Technites of ‘Engineer’, the techfest of NITK, does some brilliant work with electronics.

Thus, out of NIT Calicut, NITK, NITW, and all the other options listed by you, I would suggest you to choose NITK Surathkal for your EEE.

In my opinion, an IIT KGP CSE dual degree is a better option than IIT Guwahati CSE. Here’s why

• You get an additional degree in just one or two years
• You don’t have to sit for another entrance exam like GATE 
• Companies that open profiles for BTech also open the same profiles for Dual Degree students.

IIT Guwahati is also a good option for CSE. However, one should opt for IIT Delhi EE only if

You are confident that one will be able to change branch within a year. This is because you will end up studying CS courses with external coaching.

To secure a job, the best options are CSE or MBA. For MBA, your branch does not really matter, only your institute does.

While IIT is a globally recognized brand, DTU is no less the mother institution of reputed colleges like IIT Delhi and FMS. It has been established got 83 years and is older than IITs. However, the institute is always the secondary thing to consider, the branch being the primary factor to focus on. Determine whether your interests lie in becoming a Computer Science engineer or an Electronics Engineer.

Personally, I would suggest you go for DTU CSE because of the following reasons:

Faculty: DTU has a rich pool of highly esteemed and well-qualified Professors with over an experience of more than 30 years of teaching

Campus: Located in a metro city, you are exposed to city life. You can also prepare for IAS, MBA, GRE, Language Courses, or coding courses as Delhi has the best coaching institutes.

DTU has a rich campus culture with over 120+ societies and 15+ Technical Teams.

Alumni

There are many alumni of DTU who have made significant contributions in various fields.

Here are a few examples:

• Vijay Shekhar Sharma, Founder of Paytm
• Praveen Sinha: Co-Founder Jabong.com
• Ravi Grover: Director, Homi Bhabha National Institute. Ex- principal Adviser to Dept. of Atomic Energy, India. 
• Durjoy Datta: Bestselling author
• Raghbir Singh Bhola: Arjuna Award winner, Olympian.
• Sachin Garg: Author
• Subhav Sinha: Inventor
• Niketan Madhok : Supermodel
• Krishnan Ganesh: Founder - TutorVista
• Sushant Singh Rajput: actor

Placements 

DTU has a great placement scenario and the table below is a testament to the same. The highest CTC was offered by Palantir followed by Amazon.

Ultimately, the choice of the program depends on your area of interest as both institutes are comparable and will offer similar opportunities.