I woupd suggest BTech in CSE would give you stronger career scope and placement prospects right after Graduation. Most of the IT Companies recruit BTech graduates as Freshers unlike BCA or Other Courses like BSc in Computer Science. Ofcourse, if youre opting for BCA, you should follow it up with a MCA perhaps from some of the best Institutes like Good NITs, Central Universities for a Strong Career in the IT/Services/Software Sector.