Boil a large pot of water. Add 2 tsp full salt, 2 tsp full oil. Once the water is boiling, add the tagliatelle.
Once the water comes to a boil again, let the tagliatelle cook (unlidded) on medium-high heat (the water should be simmering/boiling). Boil for 1 hour for a softer tagliatelle, or 30 mins for a more firmer texture. Stir every now and then so the pasta doesn't stick to the bottom of the pot. Add more boiling water if the water evaporates to the extent that the pasta is exposed to the air.
Once the pasta has cooked, drain and rinse once with lukewarm tap water, to help the pasta separate.
Whilst the pasta is boiling, start prepping for the sauce by cutting the chicken, gourd and onions, and then follow the instructions below.
In another large pot, add 3 serving spoons oil. Add the onions and soften on low heat (lidded) for approx 5 mins. Un-lid and let them cream on medium-low heat.
Add 1 1/1 tsp full ginger, 1 1/2 tsp full garlic, 2 tsp full red chilli powder, 1/2 tsp full coriander powder, 1/4 tsp full cumin powder, 1/3 tsp full turmeric powder, and 1 1/2 tsp full salt. Mix the spices whilst they cook, and once the water has burned away (when the oil starts 'coming to the top'), add the chicken breast and gourd cubes. Lid and let cook for 5 mins.
Un-lid, and add 1/2 cup sweetcorn and 1/2 bell pepper, mix and let cook for 5 mins (no lid).
Add 500g Dolmio sauce, and 135g blended tomato, mix and turn to high heat. Once the mixture is bubbling, turn to medium-low heat and cook for 15 mins (or turn to medium-high and cook for 10 mins). Garnish with fresh coriander, if desired.
Just before eating, add 300ml cream into the chicken mixture and put on low or medium heat. Add 250g cheddar cheese and let it melt in. Add the tagliatelle and let it heat through. Add boiling water if needed, for a soupy sauce. Enjoy with a sprinkling of lemon juice.