Dear Sonar, It is not only the moolah which you earn but also the job satisfaction, the thrill to see that what you designed is working. What you maintain is still operating and what you produced is being utilized by the end users with appreciation. Come to the branch of fluid mechaics, theory of machines, maintenance, design and thermal engineering. Nothing can come out without being associated with all of the above! Come to the field of real engineering and see how you succeed in your career. Forget being call center guys and obeying the master. Where is your creative skill? You do everything within the set boundaries.