Mangalore buns is nothing but fried banana poori, the fermentation of dough along with banana gives it a bun texture.
Though Mangalore buns are the first thing I wanted to try, somehow tried mango poori first. This is the first time I am trying these too. I have seen in Instagram many photos sharing the texture of these banana poori, which helped me to understand the texture. I wish I could once taste it in the restaurants when I go to India.