Cook dried egg noodles as per instruction. Drain in a colander and run under running tap water to stop further cooking. Toss it in 1 tsp oil and keep aside.
Toss chicken strips in little salt and pepper. Keep aside.
In a coffee grinder or mortar and pestle make a coarse paste of ginger,garlic, and lemongrass.
In a heavy bottom, pan add 2 tbsp oil. Once the oil is hot add ginger,garlic, and lemon grass mixture. Saute on medium-high heat briefly till the raw smell is gone.( Take care not to burn it).
Add chicken stripes. Toss on medium-high heat for 1 minute. Quickly add carrot and beans. Toss for a couple of minutes.
Add peppers followed by cooked noodles. Toss everything well.
Add sauce and slit bird's eye chilis (deseeded). Mix everything very quickly on medium-high heat
Switch off the gas. Sprinkle roughly tossed basil leaves. Toss everything well.