Large overseas private equity firms, such as the $376-billion The Carlyle Group Inc. (NasdaqGS:CG), local investors such as Renuka Ramnath's Multiples Alternate Asset Management, and Japan-based financial services company Credit Saison Co., Ltd. (TSE:8253) are among investors that have expressed interest in buying up to a 49% stake in BOB Financial Solutions Limited, the credit card arm of Bank of Baroda (BSE:532134), people familiar with the matter said.