if a engineer does mba then engineering degree is of no or little use

Depends on How you put it....... yes, an engineer can be happy with his degree , and can get a very good job in any MNC . BUt as you climb the career ladder you may not be in the same position as you were at the beginning. There wld be change in your role.... goals depending upon the org with which

if u have done ur graduation through engineering and ur graduation certificate has very useful in very part of ur life.After completing ur MBA when u gain potential to start ur own business u can use ur all engineering skills on that. Best of luck 4 ur better future.