Well Done!!!
I know you've put a lot of hard work in cracking that one.It looks wonderful.I actually polished off the remnants of an Elachi North Indian last night.I agree I can now see where 'that' taste comes from that I was trying to describe,I was sure I could detect small flecks of mint whilst eating it.I always make the pakora sauce when I serve papadams,I think it's very addictive;Gazman's recipe is identical to the dip served in Spices,many thanks for completing the puzzle.It's funny such a tasty dish is achieved by something so simple.Must try this asap 
Cheers JB. Wasn't sure how you got on with Gaz's recipe as i didn't see any further comments. But the recipe does for sure contain all the right ingredients to make it just the same as Spice - another one nailed ;D. And when i see that bit of coloured onion peeking out from under the sauce I almost lept off the chair and new i just had to try it as soon as poss. It then made me think of bamble's recipe with the optional inclusion of it

. And again last week when i was in there i was rooting through the dish and found loads of evidence

. Last night was the first opportuity i have had to give it a go and i am suitably impressed, which is very unusal. I will be doing a sober side by side comparison next week and will provide some sort of report.
Off topic, the week before last i tried the Dhesi and their Bollywood Burner with chicken tikka, mushroom rice (put off the special by the inclusion of chic peas

) and brinjal bhaji. Main dish was tasty but not hot by my standards. The nearest thing it had come to a naga was a mention of it on the menu

. The rice was almost devoid of mushrooms, the occasional miniscule fungi here and there, and i mean very very small and in very short supply

. But at least the brinjal was comparable. Would i go back, yes but my first preference will always be for Spice.
Look forward to your feedback when you get chance to cook my version of the NIS. Merry Xmas and all the best for the New Year.