Onychomycosis is described as the fungal infection of finger or toenails, the nail plate with dermatophytes, non-dermatophytes, or yeasts. It affects approximately 5% of the population worldwide, and the prevalence in India is reported to vary from 0.5% to 5%. Onychomycosis (OM) is an intriguing problem for dermatologists around the world. The commonest dermatophytes causing nail infections are Trichophyton rubrum, T. mentagrophytes and Epidermophyton floccosum. The aim of present review is to describe salient demographic and clinical features of onychomycosis in different countries in the Indian subcontinent. The various factors including occupations predisposing to causing onychomycosis are also dealt with.