Pursuing an MBA after completing a diploma in ECE is indeed possible. Many universities and institutions in India offer MBA programs that accept candidates from diverse educational backgrounds. Your friend may need to fulfill certain prerequisites or bridge courses to meet the academic requirements for an MBA program. It is advisable for him to research and reach out to specific universities in Madras, India, to inquire about their admission criteria and any additional qualifications needed for diploma holders to enroll in their MBA programs. Additionally, gaining some work experience in a relevant field can also enhance his application and readiness for an MBA program.