Heat oil in a pan. Add minced mutton, gram dal, garlic, ginger, cardamom, peppercorns, dry red chilies, cloves, fennel seeds, coriander leaves, and mint. 

Stir and cook over medium flame. Keep stirring the mutton until the moisture is completely absorbed.

Stir and cook it for about 15-20 minutes till the mutton is well-cooked. Check if it is cooked by pressing the dal and minced mutton.

Bring the mutton mixture to room temperature and add it to a blender and grind it to a fine, soft mixture.

Shift the mixture to a bowl and knead it for 2 minutes to make a soft dough. 

Make a lemon-sized ball, gently press in your palm, make a round shape, and set it aside. 

Add the oil to a pan and heat on low-medium flame, place the kebabs gently, roll it in breadcrumbs, and fry it for 2-3 minutes till the kebabs turn golden-brown in color.

Transfer on a clean paper towel plate to soak the oil. Serve it with your favorite sauces or a coriander-mint chutney!