Add salt and refined flour to lamb shank pieces and mix well. Place these in the pan and sauté till well browned from all sides.
Add carrot, onion and celery. Mix well and sauté further.
Add diced potatoes, mix and sauté further. Add vegetable stock, stir and reduce heat. Add dried basil, dried fenugreek leaves and garam masala powder. Stir to mix, cover and simmer for ½ an hour.
Take boiled potatoes in a bowl. Add cream, salt and butter and mash well with a masher.
Warm the mashed potatoes and place in a serving dish. Place the braised lamb on it, garnish with torn basil leaves and serve hot.