 Citigroup Inc.s C, -1.30 efforts to sell its Citibanamex consumer banking unit in Mexico has drawn bids from Financiero Banorte GBOOY, -1.50 and Banco Santander SA SAN, -1.03 , Reuters reported on Tuesday. Citigroup CEO Jane Fraser put the unit up for sale in January as part of an effort to refocus the banks international business on commercial customers. 