Computers & IT (Non-Engg)

B.Sc (CS) is degree programme of three years but is also of four years in some universities. MCA is a post graduation course of two years duration. In all you can complete both the courses in 5 to 6 years duration.

No, MCA require 10+2+3 Bachelor degree with mathematics or equivalent and 60% aggregate marks for application for MCA. After that you have to pass an entrance exam PGCET, JECA, etc. after fulfill all criteria, you can get admission to MCA.

Yes, the field of robotics requires a combination of mechanical engineering, electrical engineering, and computer programming/computer science skills. Even, if you're not employed directly in the field of robotics, with any one of those skill sets, you'll certainly be able to find some form of employment.
The demand for automation and robotics will only be limited by your creativity. Technological progress is about increasing productivity and that's something always going to be in demand.

MBA is good as it will teach you management, which is required in every field.

Maximum reputed institute need 60% aggregate percentage in class 12th. But, you don't need to worry because many other institute are here for BCA with your eligibility. All private institute has management quota, so try to get admission through management quota by getting provisional admission.

Hello Kashif,
BCA does not need mathematical background, so you can apply. You just need to find the university, where you want to get admission and you can go to the admission portal, where you can find all the information about admission procedure.