In Chennai the most popular snack which is very popular and sold near Marina beach is Thenga manga pattani sundal. Thenga manga pattani sundal is a snack which is eaten mostly near the marina beach in Chennai or near the parks. A boy comes with his barefoot on the sand and with his sundal bucket, some murk (made with rice flour, with some spices) and some news papers with him. With the help of newspaper he make a cone shape pocket and serves the sundal. I always ask him to top with more mango pieces(shavings). The sourness of mango and the sundal goes well along with it. Whenever I go to beach I never miss this sundal, this is my favourite childhood snack at beach.
In south India, during festival times, they make varieties of sundal like with black chana, chickpea, white dry peas, dry green peas, yellow peas and many more or dry beans too. In this sundal, I have used grated coconut for more tatse, but often I just do seasoning like mustard seeds, curry leaves, onion and green chillies and in the end just drizzle lime juice to give sour tatse.