Engineering

Some of the best private institutes for B.Tech in CSE are:
BITS Pilani
SRM Chennai
Amity
LPU
Chandigarh University,. etc.
Average starting package is 4.0 lakhs.

Hi,
Eligibility
Candidate must have passed 10+2 from a recognized board.
Candidate with ITI or 10+2 in PCM certificate may get admission in 2nd year.
Interested candidate can apply directly to the college.
https://www.shiksha.com/engineering/course/diploma-in-engineering-wisdom-school-of-management-c-g-r

I think, B.Tech will give you the most of the job opportunities. As After Doing B.Sc. You will be able to go for Research institutes, Teaching Profession, Civil Services, Defence, etc. But after B.Tech, You can give all of these exams and also all the Engineering level exams for which B.Sc. Candidat

First talk with the institute if they have provision to retake you and where you can complete your courses or not. Or else, you have 3 options left as of now. Either retake M.Tech or go for MBA or get a job and try to learn there.

You can enter by just doing Diploma also. In IT, your skills are measured not the degree and Degree is just needed for offering you promotions and appraisals.

You can apply to Polytechnic or Diploma college and apply to entrance exam and appear in entrance exams, secure good rank and get best colleges which offer specialisation in branch of your choice.

Yes, you can easily pursue the course and can apply through link given in shiksha.com or college website.

The fees remain the same even through entrance exam and the fees is INR 14.41 Lacs and Caution Deposit - Rs. 10000/-. .

Probably yes, not sure about it.

Yes, you have to clear GATE for PhD.