Boston based private equity company Bain Capital has invested 1 billion dollars in a 30 percent stake of BPO and technology services firm Genpact.

The transaction is expected to be finalised at the end of this year and includes a lock-in period, preventing the selling of shares for two and a half years.

Genpact president 'Tiger' Tyagarajan, said: “We look forward to working with Bain Capital as we continue to make enterprises around the world run better by continuously improving their business processes