Warren Buffett, at a news conference in Bengaluru in 2011, lavishly praised Berkshire Hathaway executive Ajit Jain for smoothly running much of the conglomerate’s insurance businesses. Buffett, the billionaire chief executive officer and chairman of Berkshire, said he would also support Jain if ever he decided to seek Buffett’s post. Speculation has been mounting among Berkshire investors as to who will eventually succeed the 84-year-old Buffett.