B.Tech Scope

ya there is a lot of jobs in IT trade

you have lots of scope after btech
civil service
masters in IIT by GATE
MBA
UPSC Exams, Banking
PG from abroad
and lots more. its depends on your branch.

There is no seperate cadre for IT professionals in Central or State Governments. Computer Science is not a subject in Indian Engineering Services examination. However, IT professionals can get jobs in Government entities such as NIC, NITS, CDAC etc.

Yes of course.For doing b tech your college doesn't play any role, only your academic performance speaks in terms of cgpa.Latr you could appear for GATE examinations,crack the same with outstanding scores.You get admitted in IIT's and NIT'S your life s changed.Look for. Sir, Nitin Rakesh Prasad's profile @ LinkedIn - The co- founder of Gate Academy.You will get a clear idea.

Write GATE. sometimes if you are lucky enough (plus a good score) they have recruitment programmes and you can apply through gate score. or else get into some defence/DoS funded institutes through gate score. but buddy you will require hell of a score. :D
best of luck

You may take course from FrankFinn or any other institute. Check the list here.
https://hospitality.shiksha.com/diploma-in-cabin-crew-training-in-india-categorypage-6-87-271-0-0-1-1-2-none-1-0

See its depend on your interest. If you have an interest in mechanical then it will be more beneficial for you but from a job point of view, electrical have more jobs opportunity with respect to mechanical. You can decide better what you like. One more thing electrical has a very vast and tough syllabus as compared to mechanical.

You can go for company website and apply for for job in recruitment section for offline selection. You can also drop your resume in the office of company website.
Registered in job portal lie fresher word, indeed, times job, careerage.com and Nakuru.com etc