Early 2007: Patni in discussion for stake sale to Apax Partners and the Texas Pacific Group (TPG).

Oct 2007: Stake sale called off due to management issues and pricing mismatch.
2009: General Atlantic looks at selling stake, which again falls apart on pricing concerns.

Oct 2010: Patni starts fresh round of discussions; iGate-Apax and Caryle-Advent consortiums in fray.

Dec 2010: iGate-Apax tipped to be the frontrunner.

Jan 2, 2011: Deal announcement with iGate delayed over tax issues.

Jan 10, 2010: iGate-Apax buys 63 per cent stake in Patni.