Hey Aishik,
You can choose both of them but now a days BCA's is more,
when you complete your BCA then do remember that you have to MCA from any reputed college, so that you will get job in good companies with high package.
There are lots of jobs are present now a days for BCA.
Your salary will increase very soon.
Here are the top companies:
Google
Microsoft
Apple
FB
Jio
Good luck!
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