Heat oil in pan, add cardamom, cloves and cinnamon stick. Fry till the spices get fragrant, about 30 seconds.
Add the onions and cook till they start turning lightly browned around the edges. Add the ginger-garlic paste and cook for 1 minute.
Next add the potatoes and mixed vegetables. Add the coconut milk and all the spices. Cover and cook till the veggies are cooked through, about 10~15 minutes.
Once the veggies are cooked, add the lemon juice, stir well and set aside.