Make a paste of browned onions and curd. Keep aside.
Heat 2 tsps oil in a cooking vessel, add the methi leaves and saute for 7-8 mts or till they turn crisp. Remove and keep aside.
Heat the remaining oil in the same vessel, add ginger garlic paste and green chilli paste and saute for 3-4 mts. Add turmeric pwd, red chilli pwd, cumin pwd and coriander pwd and combine.
Add the tomato puree and cook for 3 mts. Add the onion-curd paste and cook for another 3 mts.
Add the chicken pieces and combine well. Cook on medium high flame for 3-4 mts. Reduce flame, place lid and let the chicken cook till three fourth done.
Add the cashewnut paste, garam masala pwd and sauteed methi leaves and combine well. Add few tbsps of water if necessary at this point of time. Cook till the chicken turns soft and you get the gravy consistency of your choice. It should be a thick creamy gravy.
Turn off heat and serve hot with white rice, biryani, flavored rice or rotis.