KB Prime Retail Mobile Banking Application- Banking at your fingertips. Banking with Kerala bank - The Kerala state co-operative Bank Ltd is just a touch away now with the KB Prime Retail Mobile application The application allows you to access your Bank account using your registered mobile number. The KB Prime Retail Mobile application provides the following features- -Fund transfer through these transaction types- RTGS, NEFT, and IMPS -Manage Payee -Quick Fund transfer to any bank wit