Finally got around to trying the beef Madras today (the cling-film top was starting to bulge) and I was not really impressed. Re-heated/"cooked" using the same methodology as the butter chicken, the beef Madras also benefitted from the addition of a teaspoon of kala namak, but the results were not particularly impressive. I won't be bothering with that one again.
Next on my list to try is a pack of Kohinoor Lucknow Adraki Bhuna sauce, described as "a robust combination of caramelised onions, tomato, ginger and garam masala (just add 450gm chicken breast)". Ingredients include onions, tomato, sunflower oil, ginger, red pepper, green pepper, ground coriander, garlic, fresh coriander, salt, white vinegar, deggi mirch, garam masala, ground cumin, ground red chillies, ground kasoori methi and ground turmeric. Wish me luck !