First & foremost it would have been better if you posted on your ACTUAL name, the reason being you don't to hide by being anonymous.
Your life--though just begun--would have been an apt example for many members on this Forum, who have been fortunate to have a smooth life.
Coming to your query, I don't think you need to worry too much. Only listen to those nay-sayers & give a broad smile. Just remember always that Bill Gates didn't study much. And neither did the person who founded one of the Companies you mentioned [reliance]--guess you know whom I mean--it's Dhirubhai Ambani [in fact he is much less qualified than you :-)]. The common aspect in ALL such people has always been 'perseverence' & the 'will to succeed' WITH basic ethics that go with the field.
Just put-in your full efforts in whatever you do & you are bound to succeed. Only remember that with success comes arrogance for many people--let it not effect you. Ensure you have your feet firmly on the ground & pass on a part of your success to the society at large. That's when you can call yourself 'truly successful'.
All the Best & let me assure you that this excellent Forum will always be there to suggest/guide you in your time of need.
As Mr.Sateesh said, it would be more better if you boldly communicate with your actual or popular name..
University doesn't matter for you getting jobs.. If thatz the belief, i think all the job aspirants from that university should be doing jobs only in small companies with a very small payout.
Your experience, skills and exposure speaks..... So, don't worry... Go ahead...
All the best.......:)