Both MCA and MBA would be a good option. But if you plan to study MCA then you should do it from a good college like NIT Warangal, Agartala, JNU and other top colleges. For admission there you'll be required to clear the NIMCET exam. If you don't study from the top colleges you won't be guaranteed a placement because MCA students fall behind the BTech graduates while applying for a job. 

If you go for an MBA then you can appear for the upcoming Management entrance exams like CAT, XAT, CMAT etc that can get you a decent college with very good placements. 

All the very best