The present study records the occurrence of two Tetraodontiformes fishes, Thamnaconus multilineatus (Tanaka, 1918), Torquigener brevipinnis (Regan, 1903) and a blue banded wrasse, Choerodon typus (Bleeker 1856), new to Andaman and Nicobar Islands (A and N Islands). A single specimen of the monacanthid T. multilineatus of total length (TL) 181 mm was caught by a trawler operated off Mayabunder, Middle Andaman from a depth range of 30–50 m. T. brevipinnis of 81.5 mm TL was caught as bycatch by a gill netter targeting anchovies off Netaji Subhash Chandra Bose Island, South Andaman, from a depth of 25 m. c. typus of length range 113-120 mm was caught off Swaraj Island, South Andaman from a depth range of 30-50 m. This study represents the first distribution record of T. multilineatus in Indian waters.

 Monacanthidae, puffer fish, first record, tetraodontidae, Eastern Indian Ocean