Hii aspirant
Hope you are doing well
After completing your BCA you can pursue your MCA and even MBA and many other PG courses
Let me provide you with some insights

1. You can prepare for CAT and go for IIM's where average package is about 20 lakh per annum
2. You can go abroad for higher studies in good B schools and get an excellent placements
3. You can get a seat in any good B school in India even if you are not able to get a good CAT score (management seat) and get good placement
4. You can also pursue your MCA and with it go for Distant education MBA or executive MBA ( but it does not usually fetch a good package)
5. And you also have the option to pursue MCA regularly and go for in demand PG courses may it be diploma or certificate like Data Science, Artificial intelligence, Machine Learning
6. You even can pursue a regular degree and get enrolled in Online course by Pioneer B schools. Such as  PGCPBM and be Alumni of these B Schools and get a package of around 500000 per anuum to begin with

The the options are endless and institutes and courses as well
These were just the few things that you can consider rest depends upon your procurement of finances
Hope it helps