Tachycardia in neonates, a condition characterized by an abnormally rapid heart rate in infants up to 28 days old, poses a complex and critical challenge in the realm of neonatal healthcare. This cardiac phenomenon, defined by a heart rate exceeding the normal range of 120 to 160 beats per minute, demands meticulous attention from healthcare professionals due to the unique physiological intricacies of newborns. Neonatal tachycardia may manifest as a result of various etiological factors, including congenital heart defects, infections, metabolic disorders, or even maternal complications during pregnancy. The clinical presentation of tachycardia in neonates is diverse, ranging from subtle signs such as poor feeding and irritability to more severe symptoms like respiratory distress and cyanosis. Accurate diagnosis requires a comprehensive evaluation encompassing electrocardiography, echocardiography, and a thorough assessment of the infant's medical history. The management of neonatal tachycardia demands a delicate balance between addressing the underlying cause and stabilizing the infant's cardiovascular system. Pharmacological interventions, such as antiarrhythmic medications, may be employed judiciously, taking into account the infant's size and developmental status. Timely intervention is paramount, as untreated tachycardia can lead to detrimental consequences, including heart failure and compromised organ perfusion. Neonatologists and Paediatric cardiologists collaborate closely to navigate the intricacies of neonatal tachycardia, often necessitating a multidisciplinary approach that incorporates neonatal intensive care, cardiology, and maternal-fetal medicine expertise. As medical advancements continue, ongoing research endeavors strive to deepen our understanding of the underlying mechanisms, refine diagnostic modalities, and enhance therapeutic strategies to ensure optimal outcomes for neonates grappling with tachycardia. In this intricate landscape of neonatal cardiology, the pursuit of precision in diagnosis and tailored treatment approaches remains imperative to safeguard the vulnerable hearts of these newborns, fostering a pathway towards improved neonatal cardiac care.