BCA

Yes, you can get. The Lovely Professional University (LPU) Jalandhar is one of the University offers BCA lateral admission to Diploma engineering students. The eligibility criteria is as under. Eligibility: Pass with 50% aggregate marks in Diploma (engineering.). Good luck.

Yes, you can take admission for BCA. Good luck.

Yes, you can pursue BCA without having Maths in class 12th. Good luck.

The duration of MCA is 2 years after completing BCA. Good luck.

Either you can still try to give the entrance exam and hope to get the best results. Or, you can take a break for a year and then reappear next year.

Yes, you can get admission in Techno India College for BCA.
Good luck.

Yes, you can do BCA with economic statistics. Good luck.

I believe BCA course is hosted only in India & Nepal. So, you can't pursue it from abroad. If you want to learn programming languages which you will be studying in your BCA course then you can check out this app "BCA - Course Programming" which is specially designed and developed for BCA students and is available on Google Play Store. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA.

No, IITM Janakpuri doesn't ask for mathematics. Only 50% in +2 is required for admission.
If you want to learn programming languages which you will be studying in your BCA course then you can check out this app "BCA - Course Programming" which is specially designed and developed for BCA students and is available on Google Play Store. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA.

If you have studied 1st year of BCA from a college and now you want to pursue the course from another college. Then, it is possible but this process is very hectic. You'll have to appear for the entrance exam and personal interview for the admission into other college. Plus, the fees of the course will also be high.