Now, we are talking about one legend here so it deserves the mentioning of another great legend also as most of people here may not know about him - Dhirubhai Ambani. The founder of another one of biggest conglomerates in India - Reliance Industries. He achieved the same success, business penetration in 30 years that took tatas about 150 years. He recorded the fastest success ever known in the business circles of India. Read more about him here -

http://en.wikipedia.org/wiki/Dhirubhai_Ambani