Final answer:
King Chandragupta Maurya accomplished the unification of the Indian subcontinent under the Mauryan Empire, established a well-organized political structure, and his grandson, Ashoka, made contributions to India's history.
Step-by-step explanation:
King Chandragupta Maurya was the founder of the Mauryan Empire and his reign was marked by several accomplishments. Some of his notable achievements include:
- Conquering a vast territory and unifying most of the Indian subcontinent under the Mauryan Empire.
- Establishing a well-organized political structure with a large and efficient military, a civilian bureaucracy, and ministries overseeing various industries and infrastructure development.
- His grandson, Ashoka, became one of the greatest Mauryan emperors and made significant contributions to India's history, such as promoting Buddhism and implementing reforms for compassionate rule and social welfare.