From which one of the following factory sites were limestone and chert blades mass produced and sent to various Harappan settlements in Sindh?

The Harappan civilization relied heavily on stone tools for agriculture and craft production, specifically utilizing chert blades [1]. The primary source for this material was the Rohri Hills near Sukkur in Sindh, Pakistan [2]. These hills consist of limestone terraces where archaeologists have identified thousands of flint (chert) manufacturing areas and workshop sites [2]. These sites represent an extraordinary scale of mass production, where blades and bladelets were manufactured and subsequently distributed to various Harappan settlements, including major cities like Mohenjo-Daro [2]. The standardized Rohri chert blades are found across a wide geographical range, including sites in Gujarat, testifying to the efficiency of Harappan long-distance trade and specialized craft production [2]. While other regions like Khetri provided copper, the Sukkur and Rohri Hills were the definitive factory sites for the mass production of these specific lithic tools [1].

Sources

1. [1] History , class XI (Tamilnadu state board 2024 ed.) > Chapter 1: Early India: From the Beginnings to the Indus Civilisation > Metals, Tools and Weapons > p. 12
2. [2] https://journals.ed.ac.uk/lithicstudies/article/download/764/1079/0