In a pan, heat oil. Add green chillies and ginger. Fry them on medium heat for a few minutes.
Add chopped onions. Fry till they turn translucent.
Add chopped carrots, capsicum, peas and beetroot. Fry them on high heat for 5 minutes.
Add fresh coriander leaves, coriander powder, dry mango powder, roasted cumin powder and salt.
Mix well.
Add boiled and mashed potatoes. Mix. Turn off the heat and let the mixture cool.
While the mixture cools, prepare a slurry by combining refined flour, salt and water. Keep it aside.
Also, spread breadcrumbs on a plate/bowl.
Once the cutlet mixture cools, take portions of the mixture and round it.
Dip it in the slurry, then dip it in the breadcrumbs and coat it well.
Prepare all the cutlets this way. Keep them open in the fridge for about 15 minutes so that they get a bit dehydrated.
Pan fry or deep fry as per your preference.