Take a Bowl and mix oil,salt,red chilli powder,ginger garlic paste to motton and mix well left 15 min to marrinate. Then take some oil at cooking pan drop some tez patta and onion. When onion colour is change to red colour then take motton and put in it. After 30 min cooking,add tomato and garam masala. Add salt to taste put the gas at sim condition. After 30min your motton masala ready...