Billionaire businessman Mukesh Dhirubhai Ambani today completes 20 years as the head of Reliance Industries Limited (RIL). From oil to telecom businesses, RIL has grown tremendously under the leadership of Mukesh Ambani. He took over the reins of the company after the demise of his father and Reliance founder Dhirubhai Ambani. In the last 20 years, RIL has achieved many milestones. Here is a look at some remarkable feats.