Python

Yes, artificial Intelligence is going to be a huge market in upcoming years and also Python is in high demand among top MNCs. Work harder, you will get the job in your dream company.
Good luck!

It is uncommon to teach python in B.Tech course. The main aim of most engineering colleges to make it's student marketable after completing the 4 years here. In B. Tech, you will be taught C in 1st year. Java or C+ in 2nd or 3rd year to understand the object oriented technique (method), and not the language itself.

The internet is filled with tutorials of Python and many other programming languages. You can learn almost every Programming Language by attending free courses. If you want to learn Programming in Python from beginning, then you can follow this app for programs:
https://play.google.com/store/apps/details?id=technark.pythonforbeginners.

Python is machine learning programming language, whereas PHP is used for web development. Select the area in which you want to work and then select the Languages which will benefit you in your field. Considering machine learning to expand in future then I'd say Python is much better. If you want to learn Python from beginning then you can use this app:
https://play.google.com/store/apps/details?id=technark.pythonforbeginners.

The life of any Programming Language is limited. When a new and better programming languages hits the market, the stability of old programming language begins to be unstable after a period of time. So, you can't rely on one particular language that will work for a century. Therefore Python's future is also just like any other Language.

Yes, you definitely can learn any programming language you want. No one can stop you from learning. Infact, you should definitely learn Python, as it will provide you much information and knowledge. For leaning Python from beginning you can use following app:
https://play.google.com/store/apps/details?id=technark.pythonforbeginners.

After learning C+ you can go for C, C#, Java, or Python. JavaScript might be a little different at this point for you. You should definitely consider C#, Java and Python as your next Languages. If you want to learn C# from beginning, you can check out this app
https://play.google.com/store/apps/details?id=technark.cforbeginners
If you want to learn Python from beginning, you can check out this app too
https://play.google.com/store/apps/details?id=technark.pythonforbeginners.

Hi, Please find the list of the books below;
1. Python Programming for the Absolute Beginner
2. Invent Your Own Computer Games with Python
3. Python Crash Course: A Hands-On, Project-Based Introduction to Programming, by Eric Matthes.

Hello,
It is a very good decision to learn python programming language, which is in demand now. You can do course of python from popular online courses portals like NPTEL, Udemy, edx, coursera, etc. For now, registrations are over on NPTEL site. I have registered for the same course (joy of computing python). Mr. Surdshan sir teaches very well. If you want to learn its basics also, then you should definitely enroll for this course. Best wishes.