Q. Itinerary or mobile merchants during sangam age were referred as:

[A] Umanar

[B] Chattu

[C] Velir

[D] Avaiyam

Answer: B
Notes:

Explanation:

Traders from faraway regions were present in the Tamil country.  Manimegalai refers to Magadha artisans, Maratha mechanics, Malva smiths and Yavana carpenters working in cooperation with Tamil craftsmen. Trade related terms such as vanikan, chattan and nigama appear in the Tamil-Brahmi inscriptions.  Salt merchants called umanar, travelled in bullock carts along with their families for trade activities. Chattu referred to the itinerary or mobile merchants.

Source: Tamil Nadu State Board Class 11