BCA

BCA Course: Eligibility
Candidates who wish to pursue BCA course must fulfill the below mentioned eligibility criteria.
Pass in 10+2 examination in any stream from a recognized board of education.
English as a subject of study.
A minimum aggregate score of 50% at 10+2 level.
*Some colleges prefer students from Science stream or those who have studied Mathematics and Computer Science at 10+2 level.
For fee structure, you need to specify the college/university name for exact information.

An year drop is a little difficult to justify in any job interview unless you have achieved something really great in that period. Let me know why are you planning to drop an year after PG Diploma?

After joining the job, you won't be able to continue with the regular course but if you are in the final year then you can contact your department and take a late joining in your department if they consider your case.

Follow the link below and filter colleges according to fees:
https://www.shiksha.com/it-software/colleges/bca-colleges-india?uaf[]=location&ts=20780472&rf=filters&ct[]=130&bc[]=33&ed[]=et_20

Check out the article below for details:
https://www.shiksha.com/it-software/articles/what-do-you-study-in-a-bca-course-syllabus-overview-blogId-13479

B.Tech/BE computer science from a top college/university is a much better course than BCA. In fact B.Tech/BE is regarded equivalent to MCA.

Integrated BCA+MCA course is more beneficial, as it will save 1 precious year and also the fee for the entire course will be less.

Yes, it is possible.
With a BCA degree, you can pursue an MS abroad in various streams of Computer Science, be it IT or PG diploma in CA. You should always check with the university regarding the eligibility criteria in various streams they have on offer.

I would recommend you to opt for short term technical DBA courses along with BCA only as then you need not to waste time after BCA to gain technical knowledge. Opt for good institutes and to know the exact scenario for faculty, etc. in such institutes get in touch with the current students through social media or in person