Sorry, RD - I missed your question about the Lingham's.
The chef adds the chilli/garlic paste at exactly 6 minutes into the video recipe. You won't find it on the ingredient list below the video, but if you look at the Directions blurb, you'll see mention of the paste on the 8th line down.
There was some discussion a good few months ago about Chicken 65 and I'm sure (could be wrong!) it was CT who suggested using Lingham's chilli/garlic paste for the dish. And a very fine suggestion it was as it is a really nice ingredient both for cooking and for dipping.