Some ‘general knolij’ , and a nice funda.
The tamilian artisan sect A, that owes its name to a distinct variety of clay pots.
The tamilian fisherman sect, that is A
, used boats B, similar to shown in pic B.

boat
The english word for B, a distortion of the original Indian usage, was coined by the pirate/explorer C, shown in pic C.

pirate
As usual, A, B , C?
Lastly, connect B to D, shown in this pic..

nrn
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Cracked by Priya, Chandrashekhar, and Mrinalini
Answer
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