Firstsource Solutions
The firm plans to hire staff to service two telecom clients, the source said.
The company started its Hubli centre in 2007 with 200 employees.
Shares of the Mumbai-based firm, which the market values at 8.35 billion rupees, closed down 3.09 percent in a weak Mumbai market.
(Reporting by Manasi Phadke; Editing by Harish Nambiar)