Hmm. Just trying to remember the ingredients. Made in a hurry as had a bit of a disaster earlier that night with a bag of frozen methi leaves. Terrible stuff; full of twigs. I think the garlic special was essentially Chewy's madras sauce (again) with finely chopped fresh garlic/tomato, a good tsp of Janu's, a little sugar, and a pinch of Jalpur GM to finish. Restaurant quality dish.
The Janu's gives a lovely intense roasted garlic flavour. It's sold as a chutney, but I wouldn't want to eat much of it by itself, for example, on a poppadom. It really is pretty hot. It contains: garlic (70 %), chilli powder, olive oil (5 %), salt, spices, lemon juice, ascorbic acid and vinegar. No sugar. It's a paste. Under 2 quid for a jar. Don't know of anything similar. Guess would need to caramelise fresh chopped garlic and stuff.
Rob