Tamilnad Mercantile Bank launches multilingual AI telecalling service, Smart Kiosk and credit card as Vice-President C P Radhakrishnan urges it to expand its national presence. Thoothukudi-based Tamilnad Mercantile Bank (TMB) on Wednesday unveiled a series of business, product and technology initiatives aimed at strengthening its customer offerings, expanding its reach and enhancing operational efficiency as part of its 105th Foundation Day celebrations.