Aratikaya masala / Raw Banana Masala

Ingredients:

Raw banana - 1
Onion - 1 (large size)
Ginger - 1/2 inch piece
Garlic - 4 flakes
Cumin seeds/jeera - 1 tsp
Turmeric - 1/4 tsp
Red chilli powder - 1 tsp
Salt - As required
curry leaves
Oil