The two partners will form a JV to build two projects in the southern Indian state of Telangana, with power sold to a local utility starting from June 2016.
The Seoul-based manufacturer will supply more than 477,000 of its modules to the two arrays, with deliveries due to begin next month.
Hanwha Q Cells is the latest foreign renewables specialist to invest in the India market, where the government has huge ambitions in both solar and wind.