Revenues for the reported quarter stood at $507.7 million, up 14.7% from $442.7 million in October-December 2011.
The company follows January to December fiscal year.
"In 2012, we delivered robust growth in revenues and adjusted operating income. In addition, we expanded and strengthened our capabilities across our enterprise services offerings, industry vertical markets and geographies with both investment initiatives and acquisitions," Genpact President and CEO N V Tyagarajan said.
Revenues for the full year were up 18.8% to $1.9 billion from $1.6 billion in 2011.
While 76.6% of Genpact's revenues in 2012 came from business process management services, revenues from IT services was about 23.4%.
For the full year 2013, Tyagarajan said: "We expect revenues to be in a range of $2.15 billion to $2.20 billion, and adjusted operating income margin in a range of 15.8-16.3%."
"This guidance reflects the revenue contribution and slight margin dilution for the year resulting from the recently-announced acquisition of JAWOOD. Without the anticipated impact of JAWOOD, we would have expected 2013 adjusted operating income margin to be in a range of 16.0% to 16.5%," he added.