Sambar is made with one or more vegetables like carrots, green beans, potato, yam, brinjal, gourds or winter melon, drumsticks, okra, raw plantains, pumpkin, and white radish. There may be more that I am not aware of. It can be daunting to go shopping for each vegetable when you need only one piece of each. So, I usually buy the ready-to-use sambar veg mix from Lulu. Some vegetable vendors will be happy to send your sambar veggies by weight... like you can ask for 1 kg of sambar veggies.