Here's why:
* Pedagogical Skills: Teaching effectively requires more than just subject matter expertise. It demands skills in lesson planning, curriculum development, assessment design, classroom management, and student mentoring. These are typically not a focus of MCA or ME programs.
* Accreditation Requirements: Most universities and colleges have specific accreditation requirements for faculty members, often involving a PhD or equivalent research experience, especially for teaching at the BE level. An MCA or ME might qualify for assisting a professor or teaching certain specialized modules, but not for leading a full BE course independently.
* Breadth of Knowledge: BE programs cover a wide range of subjects. An MCA might be highly proficient in computer science aspects of BE, but might lack the expertise in other engineering disciplines such as mechanical, electrical, or civil engineering, which are typically part of a broader BE curriculum. Similarly, an ME in a specific field might not have the necessary knowledge to cover all facets of a BE course.
* Professional Experience: Significant industry experience in engineering might be considered alongside an MCA or ME to enhance eligibility but usually isn't enough by itself.
In summary, while an MCA or ME can make someone a valuable *contributor* to a BE program (e.g., as a teaching assistant, lecturer on a specialized topic), it usually doesn't meet the qualifications for independently leading and teaching a full BE course. A PhD or equivalent in a relevant engineering discipline combined with teaching experience is typically required.