The depression, 65 km southwest of Kochi, was observed during a sea bed survey carried out during a cruise in August 2014 by the GSI research ship "Samudra Ratnakar".
- IANS (2016). Is there an impact crater off Kerala coast?
- Pillay,K.R., Dugaprasad,P., Gopakumar,B., Raja Mikhapadhyay. Savita,V.K., Mohan,K.G., Subhradeep,D., Mamatha,P.K., Kumar,P., Gajanan,D., Kailash,L.V., Ramesh,P.J. (2016). A possible impact crater from Outer Continental Shelf off Cochin, Arabiab Sea, India. // Current Science 111:1149.
- Monika Kumlehn de Mamani & Ingrid Grambow IMPAKTNAMEN: Namen der [Meteorite; Impakte/Krater; Boliden/Fireballs; Tektite] im Sonnensystem.(2018)
Multibeam 3D image of the depression located off Cochin, Arabian Sea (Pillay K.R. et al., 2016).