Maharashtrian cuisine has chutneys made of stir fried peels of vegetables like doodhi (lauki), ribbed gourd (tori), lemon or yellow cucumber and raw peels of green cucumber and ripebanana peels, to name a few
Who doesn't know "Khana Khazana" by the very famous Chef SanjeevKapoor. Caramelized Banana in Coconut Milk recipe by Zebi and Kandla (Master India Chef Contestants) Recipe Source
Mharo Rajasthan's Recipes - Rajasthan A State in Western India