...You nuked the chicken from frozen?...I take it there was no loss of flavour or texture doing it this way?
None at all, mate! In fairness, I make my chicken tikka by slicing a breast down the middle and grilling it on a skewer, then slice each half into 3 or 4 pieces pieces before using/freezing it. The microwave is only having to cope with a ziploc bag containing 12-14 slices of chicken tikka per breast, rather than 6 or so large chunks.
Nevertheless, the chicken is just as tender and flavoursome when it comes out the bag as it was when it went in.
And nuking the frozen sauces doesn't cause a problem either, even though some, as in CT's Tuk-Tuk, contain yoghurt.
It even passes my good lady's taste test (which is saying something!).

PS: I should also add that, under normal circumstances, I would defrost the chicken, sauce and whatever else in the fridge or at room temperature. It's only when I need to make something quick (like last night) that I use the microwave, but, as I said, it's all good.