During this period, 2600-1900 BCE, the Indus Valley Civilization had a great influence on early Indian culture and society.

1. City Planning and Architectural Design: Known for its towns, the Indus Valley Civilization boasts innovative city planning marked by grid patterns, complicated drainage systems, and standardized bricks found in cities like Harappa and Mohenjo- daro. This structure therefore went on to affect the nature by which future cities would grow in India.

2. Commerce and Economy: The trading system of the Indus Valley Civilizations was far-flung, extending to Mesopotamia and Central Asia. Standardization in weights and measures in India gave impetus to this trading and laid the foundations of intricate patterns in the economy.

3. Artistic Skill: Expertise in beadwork, metalwork, and pottery was part of this civilization’s repertoire, contributing to its cultural wealth and acting as an influence in shaping the long-term character of its artistic practices and technological development in India.

4. Farming: Advanced farming methods, such as irrigation and crop rotation, enhanced the productivity and sustainability of the land; these were characteristics key to the viability of future Indian societies.

5. Written Language and Emblem: The Indus Valley Civilization developed a written language and used sealings for administrative and commercial purposes. The initial forms of writing and record-keeping played a significant role in both governance and business.

6. Religious Rites: Evidence found in artifacts points to early religious practices, which began with the worship of proto-Shiva and a mother goddess cult. This set the roots for religious customs in India.

It contributed a lot toward urban planning, trade, craftsmanship, agriculture, writing, and religion, which in large measure shaped Ancient Indian Culture and Society.