South Indian cuisine technically does not exist. And I'm NOT being flippant or trying to get a chuckle out of anyone. In terms of cuisines being defined by Conquerers and their influence, It does not stand a chance. We never had martial interactions with other civilizations, like the Greeks and the Persians, or the Catholic influence that spread from Goa to South America via the Phillipines (Ref: Rachel Laudan). That is not to say that Intra nation (if there is ever such a term) influences did not shape the cuisine. The most significant of those influences was through the Marathas, a valiant , martial clan from Western India, who ruled Tanjore in Southern India. As a result many of the recipes that arise from this region of South India have share similar sounding names for dishes from both Western India & Tanjore, the most common examples that come to mind are Usal/Usli and Pitla/Pitlai. Speaking of Pitlai, Its a flavorful savory, nutty thick stew spic...
Global Palate, Indian Perspective!