The former head of McKinsey spent time in prison for tipping an insider-trading ring. Now, Mr. Gupta is speaking out — but not apologizing. After a stint in federal prison, the former McKinsey chief ...

He may not belong to India Inc. — a term used frequently to describe the country’s business community — but Indian-born Rajat Gupta’s conviction last week on charges of insider trading in the U.S. has ...