Day-2 is gently warming on the stove as I write ...

Just finished today's portion, and I now better understand exactly which element(s) seemed overly intrusive when I ate it yesterday — it is a sharp / tangy / almost citrus element, and I can't work out where it came from.  Any idea, chaps ?
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** Phil.

I haven't, Livo, but that was also my own suspicion, since every other ingredient features in most if not all of my curries and none have ever carried this strange taste before ...   Ah well, I will just have to stir in a good measure of Camp coffee and consume it as coffee-flavoured yoghurt. 

[Afterthought :  stir in to the yoghurt, not the curry !]

[After-afterthought :  or it might have been the ginger, which was quite elderly — I shall have to try eating a slice in its raw state].

Tried again this evening, this time with 50% meat and the rest judged by guesswork.  No yoghurt on this occasion, but cooked until sauce had achieved desired consistency.  A very pleasant dish, IMHO.
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** Phil.