Teacher autonomy refers to a teacher's independence and professional discretion in making decisions related to their teaching practice. It includes the freedom to determine course content and teaching methods, as well as the capacity for self-directed professional development and growth. While teacher autonomy provides benefits like improved responsiveness to student needs, it also faces challenges such as inconsistent education policies across states and a lack of training for teachers. The National Education Policy of 2019 supports enhancing teacher autonomy through career progression plans and allowing innovation in curriculum and pedagogy.