The National Council of Educational Research and Training (NCERT) is an autonomous organization in India that is responsible for developing and publishing educational resources for school-level education. NCERT XI refers to the educational resources and curriculum designed for Class 11 students.

Here is a broad overview of NCERT Class 11:

1. Subjects: NCERT Class 11 covers a range of subjects including Physics, Chemistry, Mathematics, Biology, English, History, Geography, Political Science, Economics, Sociology, Psychology, and others.

2. Curriculum: The curriculum is designed to provide a strong foundation in the respective subjects and to prepare students for higher education. It follows a structured approach to cover key concepts and topics in each subject.

3. Textbooks: NCERT publishes textbooks for Class 11 in various subjects. These textbooks are widely used across schools in India. They are known for their clarity, conceptual depth, and adherence to the syllabus prescribed by various education boards.

4. Focus on Concepts: The NCERT curriculum emphasizes understanding concepts rather than rote learning. It encourages critical thinking, problem-solving skills, and a holistic understanding of the subjects.

5. Supplementary Resources: In addition to textbooks, NCERT provides supplementary resources such as exemplar problems, solutions, and additional reading material to enhance the learning experience.

6. Preparation for Competitive Exams: NCERT books are often recommended for students preparing for competitive exams like JEE (Joint Entrance Examination), NEET (National Eligibility cum Entrance Test), and others. The books provide a solid foundation for these exams.

7. Multilingual Approach: NCERT publishes textbooks in multiple languages to cater to the diverse linguistic population in India, promoting inclusivity and accessibility.

8. Digital Initiatives: NCERT has also ventured into digital initiatives, providing e-books and online resources to adapt to the changing educational landscape and facilitate e-learning.

It's important to note that the specifics may vary based on the state education board or the educational institution, as different states in India might follow different syllabi. Nevertheless, NCERT Class 11 resources are widely recognized and form a crucial part of the school education system in India.