Mutton Varuval, a chettinad recipe

Ingredients needed for preparing Mutton Varuval
1/2 kilo Mutton
2 onions medium sized 
1  tsp chopped  Ginger -
1 tsp chopped Garlic
2 pieces Cinnamon
6 Cloves 
2 green Cardamoms
4  black Cardamoms
1 tsp whole Peppercorns 
2 Green chillies
4 red chillies - 4
2 tsps Poppy seeds
1 tbsp Cashewnuts
1/2 cup curds 
2-3 pinches Turmeric powder 
Salt to taste
Oil or ghee

How to prepare Mutton Varuval?
Clean and cut mutton into small cubes . Keep aside.
Chop one onion and the other roughly.  Soak Poppy seeds in warm water  for some time.
Now chop ginger, garlic. Keep aside.
Grind  ginger, garlic,  cut onions, red chillies, poppy seeds,  green chillies ,  turmeric powder, cashew nuts and the peppercorns in a mixer till you get a  smooth paste.
Heat ghee or oil in a pressure pan.  Now add the finely chopped onions and saute  till they are transparent.
Then add the mutton pieces, fry in medium flame  till it gets golden.
Add cinnamon, cloves, green cardamoms  and black cardamoms. Fry for a few minutes.
Now add the ground masala paste in to the pressure pan and saute till the masala gets  dry.
Add salt to taste,smoothly  beaten curds, along with 2 cups of water.  When the water starts dripping under the weight, simmer and cook for 15 minutes.
Garnish with chopped coriander leaves. Serve hot with rotis or rice.