Introduction:
NCERT solutions are the comprehensive and detailed explanations to the textbook questions provided by the National Council of Educational Research and Training (NCERT). They serve as a valuable resource for self-study as well as for guidance under a teacher's supervision. Whether NCERT solutions are sufficient for self-study or not depends on individual preferences and the subject matter being studied.

Advantages of NCERT Solutions for Self-Study:
1. Complete Coverage: NCERT solutions cover all the topics and concepts in the textbook. They provide step-by-step explanations, making it easier for students to understand and apply the concepts.

2. Structured Approach: NCERT solutions follow a structured and organized approach, making it easier for students to navigate through the content. They are divided into chapters, which further contain sub-topics, examples, and exercises.

3. Clear Explanations: NCERT solutions provide clear explanations for each question, ensuring that students grasp the underlying concepts. They help in building a strong foundation in the subject.

4. Exam-oriented: NCERT solutions are designed keeping in mind the pattern and format of board exams. They provide ample practice through exercises and sample papers, helping students prepare effectively for examinations.

Importance of Teacher's Guidance:
While NCERT solutions are useful for self-study, having a teacher's guidance can further enhance the learning process. Here's why:

1. Clarification of Doubts: A teacher can clarify any doubts or queries that students may have while studying from NCERT solutions. They can provide additional explanations or examples to ensure better understanding.

2. Personalized Guidance: A teacher can provide personalized guidance based on the student's strengths and weaknesses. They can identify areas where a student needs more practice or assistance, and provide targeted guidance accordingly.

3. Discussion and Interaction: Classroom environment fosters discussions and interactions among students. This can lead to a deeper understanding of the subject matter as students can learn from each other's perspectives and insights.

4. Feedback and Evaluation: A teacher can provide regular feedback and evaluation to track the progress of students. They can identify areas of improvement and suggest strategies to overcome any difficulties.

Conclusion:
NCERT solutions are indeed useful for self-study as they provide comprehensive and well-structured explanations. However, the guidance of a teacher can further enhance the learning experience by providing personalized assistance, clarifying doubts, and fostering interactive discussions. It is recommended to utilize both resources effectively to ensure a comprehensive understanding of the subject.