Complex sentence: The "dum" method of preparation, i.e. sealing the lid with dough (maida) or loin cloth and placing red hot charcoal above the lid is applied here as it is a Pakki biriyani, the other famed recipe Hyderabadi biryani is a kacchi biryani.
Split into simpler sentences: The "dum" method of preparation (sealing the lid with dough (maida) or loin cloth and placing red hot charcoal above the lid) is applied here. This is a Pakki biriyani, the other famed recipe Hyderabadi biryani is a kacchi biryani.