Dr. Prabhat Saxena is a highly regarded pediatrician in Delhi NCR, specializing in the diagnosis and management of Biotinidase Deficiency (BTD), a rare genetic disorder. Biotinidase deficiency affects the body s ability to process biotin, a vital vitamin necessary for healthy metabolism, skin, hair, and nerve function. If untreated, BTD can lead to developmental delays, seizures, and other neurological issues.