Ajay Das is the author of Phonetics: The Science of Speech Production, published by Omega Publication, New Delhi. He completed his postgraduate studies and M.Phil. from Ravenshaw College, Cuttack, Orissa, and served as a lecturer in English at Biraja Women's College, Orissa, before completing a postgraduate diploma in Journalism and Mass Communication. The book covers articulatory phonetics for vowels and consonants, suprasegmentals, anatomy and physiology of speech, and acoustic phonetics.