Cut the thighs in small pieces.
Mix garlic, ginger and yellow chilli powder to make the marinade.
Coat the chicken well with the marinade and leave it to rest for a while.
Now in a bowl add cheese and yogurt and mix well till it becomes paste like.
Add to this gram flour, green cardamom powder, yellow chilli powder, mace powder, nutmeg powder and mix all well.
Add to this now black rock salt, coriander leaves, oil and mix well again.
Now add the chicken to this and make sure the marinade coats all the pieces well.
Once done put the chicken pieces on skewers and inside the tandoor.
Cover the tandoor to cook the kebab.