Hi there, you may already have a few of these, but here is a traditional north Indian Tandoori marinade. 200 grams yoghurt,1 tablespoon each of ginger and garlic paste,1 tbsp of tandoori paste(commercial stuff is fine),1/2 tsp of red food colouring(optional),2 tsp ground cumin,2tsp ground coriander,1 tsp garam masala,1/2 tsp chilli powder,1/2 tsp tumericand 1 tsp of salt. Pre heat oven to as high as it goes bake chicken for 20 mins then reduce to 120 degrees until done.
dressing; 1 bunch of mint and coriander,2 tsp pomegranite seeds ground,1tsp salt,1tsp chilli powder,200 grams yoghurt,1 small onion, 1 tsp tumeric. blend them all together.
Oh and one more thing, i have seen a couple of home made Tandoors using a large clay garden pot with a slot 2 inch wide cut from top to bottom and a metal lid.Works very well. Cheers