I wud say ther r quite a lot of jokes abt the typical keralite's accent and the jokes r nothing to take offence against.
Infact some of them do point out positive aspects .... Like the oft-repeated teastall in the moon joke,it actually shows the pioneering spirit of a group of people who survive and flourish in the most unhospitable of places and continue to be there and witness the growth.

Life is like poker.You pay for what you learn.n the only way you learn is with the cards in ur hand and money on the table.