Engineering

As I am a civil engineer when you'll be in final year, you will go through placements and in that phase if you have a sound knowledge about programming, it will definitely give you an edge among your peers, as well as soft skills for group discussions during placement rounds.

Both the branches are different from each other, but job prospects and career opportunities are almost same. Read the major difference and similarities about these streams in the below link that I'm sharing.
https://www.obsessedwithdatascience.co.in/2018/07/computer-science-vs-information_19.html

Both the branches are different but very similar with each other. Please read out the post in below link to get full details. https://www.obsessedwithdatascience.co.in/2018/07/computer-science-vs-information_19.html.

No, you are not eligible for BTC, because for BTC you have required 50% in graduation. If you want to become teacher, you can do PPT at class 12th level.

Yes, offline forms are available in some institutions, but it is better to fill it online. So, you can ensure that your application is submitted properly and you can ensure the correctness of your application too.

You can apply for college change if you are changing the college in same University. Otherwise, you have to start the College from the first year.

You need to fill the application form issued by Annamalai University distance education. You also need to clear the entrance exam organised by Annamalai University of distance education and then your admission is finalized.

Hello,
You can try in private colleges. They might be having seats
in-
Galgotia University
Poornima University
Noida Institute of Technology
Sharda University
Some other private colleges.

Hello,
For PGDM, Job Experience is between 0-2 years. Hence, your profile of 6 months work ex is eligible.
For PGPM, you need to have at least 2 years of work experience for the enrollment.

Yes, you can pursue an open course, but BE is a rigorous curriculum. So, it would be suggested to do one thing at a time.