It was the result of Achaemenid conquest that a new industry of ______ developed in Indian borderland, specially in Kamboj.

The Achaemenid Empire conquered parts of Northwestern India, including Gandhara and Kamboj, making them satrapies. Historical sources, like Herodotus, mention the tribute paid by the Indian satrapy to the Achaemenids, which included gold and wool. The region of Kamboj was known for horses and wool production. The integration into the large Achaemenid empire stimulated economic activities, including potentially standardizing or boosting the production of goods like woollen blankets for tribute or trade within the empire.