why do scholars believe that the indus valley had a highly developed civilization?

its royal tombs hold may artifacts.

it left behind many written records.

its cities show a high level of planning.

it had a highly organized religion.

Scholars believe that the Indus Valley had a highly developed civilization due to several factors:

1. Royal tombs and artifacts: The discovery of royal tombs and the numerous artifacts found inside them suggest a sophisticated and well-organized society. The presence of valuable objects such as jewelry, pottery, and tools indicates a high level of craftsmanship and technological advancements.

2. Written records: The Indus Valley civilization is known for its script, known as the Indus script. Although it has not been deciphered yet, the presence of a writing system indicates a complex society with a desire for record-keeping and communication.

3. City planning: The cities of the Indus Valley, such as Mohenjo-Daro and Harappa, exhibit a high level of urban planning. The cities were built on a grid system, with well-organized streets, sophisticated drainage systems, and multi-story buildings. This suggests advanced architectural and engineering skills, as well as social, administrative, and economic organization.

4. Organized religion: The presence of numerous seals depicting religious symbols and rituals suggests that the Indus Valley civilization had a highly organized belief system and religious practices. These seals are often found in homes and public buildings, indicating the significance of religion in their daily lives.

Overall, the combination of royal artifacts, written records, city planning, and evidence of organized religion provides strong evidence for the highly developed civilization of the Indus Valley.