MUDRA loans under the Pradhan Mantri Mudra Yojana (PMMY) consist of three categories: Shishu (loans up to 50,000), Kishore (50,001 to 5,00,000), and Tarun (5,00,001 to 10,00,000). These categories are designed to support different stages of micro and small enterprises’ growth. ”Shaishav” and ”Vyask” are not part of the scheme.