This is CDC's first direct equity investment in India since the launch of its new strategy in late 2012.
The investment builds on Abraaj's long-standing partnerships with healthcare institutions in South Asia and represents its sixth healthcare investment in the region.
"This investment let's us expand and develop our high-quality medical facilities, allowing us to replicate the successful pioneering model across (India), including in cities such as Bangalore, Chennai and Pune," said Ramesh Kancharala, CMD of Rainbow Hospitals.
Srini Nagarajan, CDC's Regional Director for South Asia, explained the rationale behind the investment by saying the gap in provision of healthcare in India will need to be plugged by the private sector with demand expected to grow at around 15 percent per annum over the next decade.
"We'll help the business develop its plan to become a national centre of excellence for the teaching of paediatric medicine and for helping other institutions to deliver quality care with a focus on lower income groups," he said.