Folksies.. here's a Mutton-Liver-Homestyle, recipe suggested by my Daddy Dearest..cooked of course by yours truly  
Save it if you like it for a Monsoon Sunday Lunch..

Mutton Liver- 300gms (cleaned , cubed and boiled for bout 10mins)
to be marinated 2 hours prior to cooking in ginger garlic paste, curd, salt and turmeric powder.

Heat mustard oil and throw in Red chillies, cloves, black cardamoms and a small stick of cinnamon.. finely chopped onions to go in next and stirred till golden brown, add 1 finely chopped tomato followed by a tea spoon of coriander powder and red chilli powder.. a pinch of sugar(optional) for caramelising and bringing a mouth watering brownish colour to be added next..moderate salt.. after the 'bhunno' is done, add the marinated liver to this and 'bhunno' for another ten minutes before adding hot water as per the consistency of gravy you wish to have 
Garnish with fresh finely chopped Coriander leaves and devour the Mutton-Liver-Curry with Basmati Rice or hot paranthas