Asia-focused private equity firm Baring Private Equity Asia has agreed to purchase a 57 percent stake in India-based cash management company CMS Info Systems for US$250 million from global investment and advisory firm The Blackstone Group. CMS provides ATM-related cash management services, including cash delivery and pick-ups and in-transit services. Blackstone previously invested a reported US$65 million for a majority stake in CMS in 2009.