this is a south indian community which belongs to agriculture and trading community who are famous for trade of spices with the other countries. they are famous for their food, trade.
chicken chettinad here the chettinad means cheti land so the preparation is from the chetti place
the
Indian Food is synonymous with these two words since 3 centuries now.. British raj with the indian globe trotters spread the cuisine world over taking the flavour and the spice hunger with them. i'm not over exagerrating but every major and minor city all over the world has space for indian restaurant.