A first-generation entrepreneur, Mittal started his first business in April 1976 at the age of 18, with a capital investment of borrowed from his father. His first business was to make crankshafts for local bicycle manufacturers. In 1980, he along with his brothers Rakesh Mittal and
Rajan Mittal started an Import Enterprise named Bharti Overseas Trading Company. However, the talks fell apart as MTN group tried to reverse the negotiations by making Bharti almost a subsidiary of the new company. In May 2009, Bharti Airtel again confirmed that it was in talks with MTN and the companies agreed to discuss the potential transaction exclusively by 31 July 2009. Talks eventually ended without agreement, some sources stating that this was due to opposition from the South African government. In June 2010, Bharti led by Mittal acquired the African business of
Zain Telecom for $10.7 billion (enterprise value) making it the largest ever acquisition by an Indian telecom firm. In 2012, Bharti tied up with
Wal-Mart, the US retail giant, to start a number of retail stores across India. In 2014, Bharti planned to acquire
Loop Mobile for INR 7 billion, but the deal was called off later. His son
Kavin Bharti Mittal is the CEO and founder of
hike Messenger. In September 2010, Mittal's son, Shravin Mittal, joined Bharti Airtel as a manager having worked for Merrill Lynch in New York and Ernst & Young in London. In 2012, Mittal took Bharti Infratel public with an
IPO that raised $760 million. Mittal noted that the sale, considered by many to be only a modest success, was a "strong endorsement from qualified investors". The board was restructured ahead of the IPO with Mittal remaining as chairman and managing director. After the IPO, shares of Bharti Infratel dropped sharply at the commencement of trading. In 2013, Mittal was ordered to appear before a special Delhi court In late 2013, Mittal announced the acquisition of
Warid Congo, making Bharti Airtel the largest telecoms provider in the Republic of Congo. In 2015, Sunil Mittal announced that he would be joining the board of Oneweb, a space internet company. Mittal was one of the investors in a $500 million investment round that included Coca-Cola, Virgin and Qualcomm. In 2016, Mittal made changes at Bharti Airtel to enable the company to compete against the launch of
Jio. in the race to become India's largest telecom company. In 2017, Mittal announced "war on roaming" by scrapping charges for outgoing and incoming calls within India as well as international roaming charges. ==Philanthropy==