Reliance Consumer Products (RCP), the FMCG arm of Reliance Retail Ventures (RRV), has announced that it will acquire a 50 per cent stake in Gujarat-based Sosyo Hajoori Beverages, the owner of soft drink brand Sosyo. The Hajoori family, who are the existing promoters, will continue to own the remaining stake in the 100-year-old beverage company.