Thank for that pointer/link, Mick. When I came downstairs this morning, I was greeted with the most wonderfully aromatic smell, which was almost certainly coming from the small quantity of pulao "gravy" that I had left over. I thought as soon as that smell greeted me that perhaps there was a possibilty to bring a standard BIR curry up to another level by bhooning some whole mixed masala and then gently cooking it in the base gravy before adding the latter to the spices and meat, and your message seems to confirm this. I shall certainly give it a go, and I shall also experiment with using panch phoran for making pulao rice, and with using whole mixed masala for the same, rather than making up a special "pulao rice" blend as I did yesterday.
** Phil.