I work along side two other indian chefs and have never once seen them eating rice..It's either a nan or a chappti to soak up the curry..never in millon years would they use utencils..People say they could never eat a curry without rice, many Indians rarely do...Well from my experience anyway..I have staff currys frequently, and never with rice, just a chappati..i'ts a tottaly a new experience, i love it...cheers Boaby
India is a big country, and it's true, there are many people that prefer bread with their curries or dals, but there are also regions, where they eat almost exclusively rice. Northern and north-western regions will prefer the bread, which has also something to do with the fact, that no one else produces that amount of wheat. There are some dishes, that are so soupy and runny, even indian people use spoons these days (:
Regarding the oil, I never heard or read to add some to prevent ingredients from sticking in general, but I feel that you have quite often to add some extra, while frying eggplant slices. They soak up quite much, and if they are spiced with powders, these can burn easily otherwise. Normally, I would add water, too. Some recipes for Kali Dal use mustard oil as flavouring added after the boiling (or at the beginning, which also helps the beans to soften up and prevents them from splattering). Anirudh Arora, Head chef of the Moti Mahal (London), adds a few teaspoons of vegetable oil to the (Dal)Makhani tomato sauce, but I'm not sure for what reasons exactly.