These are the jewels in India Inc's crown... men who have created industry empires that will inspire generations. We present 10 of India's top CEOs. They have not been ranked and their names appear in no particular order. Lakshmi N Mittal Steel tycoon Lakshmi Niwas Mittal is the richest Indian in the world, with an estimated wealth of $25 billion. He resides in London, has his company registered in the Netherlands, but still holds an Indian passport. Although Mittal Steel was already the world's biggest steel company, his king-sized ambitions were evident when he took over steel giant Arcelor to create a new steel behemoth -- Arcelor-Mittal. L N Mittal left India in the mid-1970s to start his career. He was sent to Indonesia by his father to shut down the family's ailing steel plant and sell the land. Instead, young Mittal saw an opportunity and turned the plant around. To prove that this was no fluke, Mittal acquired a 1.3 million tonne, Iscot Steel plant in Trinidad & Tobago, which was losing $100,000 a day. One year of Mittal-style management and it was making profits, the LN Mittal legend was born. That move helped him get into America. The Mexican government seeing the success that Mittal made of Iscot, asked him to take over their ailing steel plants in 1992. But it was not all that smooth. In 1994 Mittal had differences with his brothers and father, and went on to form his own company. The following year Mittal entered the European market, acquiring the 5 million tonne Kazakh steel plant, Karmet. Meanwhile, Mittal had listed Ispat International on the New York and Amsterdam Stock Exchanges in 1997. Eight years later Mittal Steel became the world's largest steel maker when he took over the US's largest steel producer -- the International Steel Group. He then consolidated all his steel holdings into Mittal Steel.  Ratan Tata Ratan Naval Tata, a bachelor, is the chairman of the Tata Group, India's most respected conglomerate. He was born into a Parsi family in Mumbai (then called Bombay) to Soonoo and Naval Hormusji Tata on December 28, 1937. Anil D Ambani The fourth richest Indian today, with a net worth of about $13.5 billion, Anil Ambani is chairman of Reliance Communications, Reliance Capital, Reliance Energy and Reliance Natural Resources Limited. Before the Reliance empire split, he was vice chairman and managing director of Reliance Industries Limited. The Reliance group was founded by his late father Dhirubhai Ambani. Anil was born on June 4, 1959. He joined Reliance in 1983, two years after his elder brother Mukesh, as co-chief executive officer. He is credited with leading India's foray into overseas capital markets with international public offerings of global depositary receipts, convertibles and bonds. He also directed RIL's efforts to raise $2 billion from global markets. Anil was elected as an independent Member of the Rajya Sabha with the support of the Samajwadi Party, but resigned on March 25, 2006. Ambani who was once ridiculed for being overweight at a shareholder's meeting is now a fitness freak and runs the Mumbai marathon regularly. He has a bachelor's degree in Science from the University of Bombay and a master's in Business Administration from The Wharton School at the University of Pennsylvania. He is married to former Bollywood actress Tina Munim.   He did a short stint with Jones and Emmons in Los Angeles, California, before returning to India in 1962. He had earlier turned down an IBM job offer. He joined the family business in 1962 and worked with many of his group's companies. He took over as group chairman from the legendary J R D Tata in 1991. Since then, he has been instrumental in boosting the fortunes of the Tata Group, which has amongst the largest market capitalisations in the Indian stock markets. Tata Motors developed the Tata Indica in 1998. This was the first 'entirely Indian' passenger car. Ratan Tata's dream now is to manufacture a car costing just Rs 100,000. Ratan Tata holds a degree in Architecture and Structural Engineering from Cornell University. He has also done the Advanced Management Program from Harvard Business School in 1974-1975. Mukesh D Ambani Mukesh Ambani, the chairman and managing director of India's largest private sector enterprise -- Reliance Industries Limited -- was born on April 19, 1957. His father, the legendary Dhirubhai Ambani, was then a small businessman who later on rose to become one of the legends of Indian industry. Mukesh joined Reliance Industries in 1981 and was the brain behind Reliance's backward integration from textiles into polyester fibres and into petrochemicals. During the process of backward integration, Mukesh Ambani led the creation of 51 new, world-class manufacturing facilities involving diverse technologies that raised Reliance's manufacturing capacities manifold. The world's largest grassroots petroleum refinery at Jamnagar is his brainchild. He was also the in-charge of Dhirubhai's dream project Reliance Infocomm. But after the split in the Reliance Empire, Reliance Infocomm went to his brother Anil. Mukesh Ambani is now planning to enter retail sector in a big way and will launch a chain of 'Reliance Fresh' retail stores. He also entered into an agreement with the Haryana government to establish a Special Economic Zone with an investment running into billions of rupees. He has a bachelor's degree in Chemical Engineering from University of Bombay and a master's in Business Administration from Stanford University, USA.  Azim H Premji Azim Hashim Premji, the chairman of Wipro Technologies, is one of the richest Indians. He is an icon among Indian businessmen, especially in the software industry. Born on July 24, 1945, Premji was studying Electrical Engineering at Stanford University, USA when due to the sudden demise of his father, he was called upon to handle the family business at the age of 21. Wipro was then Western Indian Vegetable Products, a small cooking oil company. Premji diversified into bakery fats, ethnic ingredient based toiletries, hair care soaps, baby toiletries, lighting products and hydraulic cylinders. And then shifted focus from soaps to software. He transformed Wipro into one of India's most successful IT companies. Under Azim Premji's stewardship, Wipro has grown from a fledgling Rs 70 million oil company into an IT giant with a turnover of $2.4 billion and an employee strength of 57,000. Azim Premji has regularly featured in the Forbes' list of the world's richest people. He was also rated among the world's 100 most influential people by the Time magazine. In 2005, the Indian government honoured him with Padma Bhushan, one of the nation's highest civilian awards