When the colour of the mix turns into brown,put the Aaloo pieces
Stir the mix well
Add Phoolgobi also along with required quantity of water and stir it further
Allow to cook it properly.
If you want to serve it in gravy, then put off the stove as soon as the Aaloo and Phulgopi is cooked well.If you want to use it as fried one, then allow to evaporate the water from the mix and switch off the stove and serve it with Chappathi/Poori/Dosa etc.