Solar-DC solutions startup Cygni Energy today announced it has raised USD 6.4 million through a combination of equity and debt. The equity funding is led by Endiya Partners, an early-stage venture capital firm that invests in product startups, and the debt by IndusInd Bank, the company said in a statement. According to the statement, the funds will help the startup in expanding capacity, strengthening R&D capabilities and increasing market reach. Cygni manufactures one of the most efficient solar controllers and had raised an initial funding in 2014.