heat oil in pressure cooker
add cinnamon
add chillies
add onions
fry until golden brown
add ginger garlic paste
fry for 2 min
add tomatoes
fry until tomatoes dissolve partially
add all spices(masala) nd turmeric powder
add salt
fry until a paste like structure formed
add chicken pieces
fry until chicken pieces gets softned
add more oil if ..base of pressure cookers sticks to gravy
add 2 cups water nd allow it to boil
when chicken gets soften add soaked rice into cooker nd add water 1 inch above rice lvl
cover the lid nd wait for 1st whistle
open the cooker nd check water gets evaporated or not add coriander leaves nd stir well cover the cooker nd cool for 2 min
your chicken briyani is ready ...taste best along with sip of chilled coke