IGATE founders to bag $1 billion in acquisition by Cap Gemini

French IT services company Cap Gemini plans to buy U.S.-based rival IGATE Corp for $4 billion, in a deal that makes North America its biggest market and hands IGATE's founders a $1 billion windfall. Cap Gemini also raised its 2015 sales forecast on Monday in a first-quarter statement brought forward to coincide with the announcement of the cash deal. IGATE, a technology and services company with strength in the financial services sector but also active in retail, manufacturing and healthcar