To make the green paste, saute the onion and green chilli, add the coriander, mint and curry leaves, a little water and grind
In a kadai or pot, heat some oil and saute the cumin, cinnamon and coriander seeds
Add the onion and saute till translucent
Add the chopped garlic and ginger and the chilli and saute
Add the tomatoes and cook for 10 - 15 mins
Add the chicken followed by the powdered spices and mix
Add all the green paste
Add the water to the processor and add that in
Mix, cover and cook for 15 - 20 mins
Add salt to taste and keep stirring at intervals
Once the chicken is tender, add the coconut milk
Cook for another 5 mins
Finally add some chopped coriander and the Garam Masala
Mix and serve