Hi,
Thanks for the questions:
Cold base: It had been defrosted and then heated up in the microwave so was actually quite hot, although not like in a pot.
g/g halfway through cooking: It didn't, it went in at the start with tom paste, methi, chilli, etc. The process starts with base instead of oil and it's a different technique - more used than you might think.
spices & tom paste halfway through: as above
Oil separation: This is a different technique so can't be compared to what you may be doing. The base is actually a fully cooked out 'sauce'. It's more ready to go than a watery base. Also, as there are no dry spices being added, it doesn't need so long to cook out the raw taste, etc. The oil had definitely separated from the base at the end (perhaps it didn't come out well enough in the video though). But definitely a finished dish, trust me.
I accept this is a different method! I've had several comments to the effect that this is the style they've seen in their BIRs and were a bit relieved to see it offered here. It's just a regional thing.
Hope that answers your questions, have a look at the recipes posted here and see the technique as it's written. You start with a dry pan and put in base instead of oil. Taking the pan off the heat is commonly done in BIR to add things (You Tube has countless examples) but not enough hands was a bit of a factor, lol! The curry is still cooking for around 8-9 mins - the video was chopped up a bit as I was running out of memory as I progressed.
Regards,
Martin