Remedy for Dry Chicken Yakhni pulao ?
Pulao is usually a "dry" dish without any gravy/sauce left in it when it finishes cooking. If the rice seems to be fully cooked and the individual grains do not seem to be under cooked or slightly crunchy then I think it is probably correct. 

Many people serve raita (I like a simple yoghurt-onion-tomato mix with some chili powder and salt) and green coriander chutney along with pulao or biryani which helps to make the overall experience less dry. I usually cook the marinade as well to make a gravy/salan to serve on the side when I make chicken biryani.