Hi C.A,
It's nice to make a contribution after all this time.
I have been rather busy lately and not done much curry cooking. However, going to India has given me some inspiration and having a real Indian Chef show me how they make the most wonderful food made me think I just have to share that little bit of knowledge with everyone else on the site as it is food worth trying and cannot be more authentic than this!
Although there is not B.I.R. food in India the dishes they make are to put it mildly stunning! Restaurant menu's only have a few of the dishes we see in our restaurants but they are very different in taste. You see they Vindaloo and the C.T.M. but find it hard to see a Madras or a Korma anywhere. C.T.M is mainly called Butter Chicken. They do have Jalfrezi's and make a Chicken dish called Chicken Xacuti which is fairly fiery and very tasty.
The Vindaloo for instance just isn't hot!! We gauge the strength of chilie heat by the name of the dish whereas in India they all seem to be medium dishes! If they make a dish slightly hotter than medium they apologise and watch your face for a reaction to the heat and of course they don't get one as it is very palatable to us westerners.
To answer your question and as Surge say's Chicken Massala and Kitchen King Massala are blends of powdered spices that can be found in smallish boxes at your local asian store. I found the M.D.H. brand of Kitchen King at my local Asda ( surprise, surprise! ). They cost about 80p a box for 100 gms.
I have ( hopefully ) attached a photo.


These two Massala's along with Garam Massala are the secret to the best Tandoori you have ever had. There are alternative recipes for other curries on the back of the boxes but I haven't tried them yet. If you fancy giving this a try and can't get these spices locally I can always post some to you as I can get it easily where I live!
Regards
Ray