Incidence and predominant causes of deafness in 20 neonates, 100 infants and 1340 school going population in the northern region of the Indian subcontinent, was investigated by the E. N. T. Department, of Dayanand Medical college and Hospital, Ludhiana, Punjab.The recorded incidence of deafness in school going children was 12.16% comprising conductive loss (98%) and S. N. loss 2%. Out of many cases more notable were chronic rhinitis, tonsillitis, adenoiditis etc.