Abstract: Stridor may be congenital or acquired. It can be acute, intermittent or chronic. Laryngotracheal inflammation (croup) is the most common cause of acute stridor. Laryngomalacia is the most common cause of chronic stridor. In the infant and newborn, stridor usually indicates a congenital disorder including laryngomalacia, vocal cord paralysis or subglottic stenosis1. Most of the studies related to causes, management and outcome of stridor are from western countries. From India there are only limited studies.