Step 1: Understanding Buddhist teachings.
Buddhism is based on key doctrines such as impermanence (Anicca), non-self (Anatta), and suffering (Dukkha). These teachings explain the nature of life and existence.
Step 2: Analyze statement I.
The idea that the world is constantly changing is called Anicca (impermanence). This is a core Buddhist principle. Hence, statement I is correct.
Step 3: Analyze statement II.
Buddhism rejects the concept of a permanent soul (Atman). This concept is known as Anatta. Hence, statement II is correct.
Step 4: Analyze statement III.
Buddhism teaches that life involves suffering (Dukkha), which is one of the Four Noble Truths. Hence, statement III is correct.
Step 5: Analyze statement IV.
Buddhism does not say that renouncing the world is essential for all. Instead, it teaches the Middle Path, avoiding both extreme asceticism and indulgence. Hence, statement IV is incorrect.
Step 6: Conclusion.
Therefore, only statements I, II, and III are correct.
Final Answer: I, II, III are correct.
Two statements are given below as Assertion and Reason (R). Read them carefully and choose the correct option.
Assertion : Harappa was a well-planned city.
Reason (R): It had a well-planned drainage system.
Match Column-I with Column-II and choose the correct option: 
Identify the ancient Indian text with the help of the following information: