IFC, part of the World Bank group, focuses on lending to entities in the developing world.
"The total project cost is estimated at $480 million for up to 400 MW of wind farms proposed to be implemented by March 2013.
As per IFC's Summary of Investment Information, the funding proposal would be put up for the consideration of its board on May 24.
"The first of those sites is likely to be the 300 MW wind farm at Dangri in Rajasthan. Dangri wind farm site is approximately 65 kilometres south east of Jaisalmer in the Thar Desert, Rajasthan," it noted.
The participation of IFC is likely to help Inox to complete financing of the project.
IFC said the project would increase generation of renewable power generation and also help "a mid-tier renewable energy company at an early stage to develop its business".
Presently, the company operates wind farms in Tamil Nadu, Rajasthan and Maharashtra.
A 100 MW wind farm at Dangri, Rajasthan is under construction.