BCA Scope

Both of the courses are good. It depends on the knowledge and skill set of the candidate for getting job. You should select a course according to your interest. If you've interest you will learn more and eventually will get a good job.

You can get admission into BCA. There are many universities which will get you admission with 57%. You should check the eligibility criteria of the universities in which you are interested in for BCA.

You should go for MCA if you're interested in programming and wants to make career in development. Or you can also go for MBA for making a career in management.

Go for internship as internships are important for getting placement. Select a field in which you want to work and have interest in it with proper knowledge and skills. Then, try seeking internship in that area.

The chance is very low with that score and percentile, and it seems that may be you'll not get the chance of taking admission in FC, Pune. But, still you can make a try directly. If you don't get then there is many more colleges you can have.
https://www.shiksha.com/college/fergusson-college-fergusson-college-road-pune-25748
This link will give you a better idea about this college. Stay positive. All the best.

You can try to build your career in management by pursuing course like MBA.

Getting a job in Google after BCA will be a little harder as compared to B.Tech graduates. But, you can try your best to get into. To get into Google you need to focus on contributing to coding websites like Code Chef etc. And also participate and try to secure a good position in coding competition held at state level.

There are many popular colleges in Ghaziabad and Noida for BCA course. The list is shared below:
IMS, Noida
IMS Ghaziabad
IMS UCC Ghaziabad
ITS Mohan Nagar, Ghaziabad
IPEM
INMANTEC
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. https://play.google.com/store/apps/details?id=technark.bca_courprogramming.

I don't think that any foreign countries recognize BCA as an engineering course. You can try to get a Master's degree in MCA after BCA to get more fruitful career.

You can go for MCA after BCA, if you want to build your career in Information Technology. Or, go for MBA if you want to build your career in Management.