Masala is a blend of Indian spices. It includes but is not limited to: cinnamon, star anise and coriander seeds. Each blend is different and the ingredients also vary across households.
The process of making the masala powder is time consuming. First, the best seeds and spices are chosen for their freshness and aroma. Then the quantities of each spice is determined. It is then washed and dried in the sun. This takes a couple of days to dry out completely. The spices are then dry roasted till aromatic, cooled and processed.
Once the spices are ground to a powdery state, it is sifted and the large bits that are left in the sieve are placed in a separate basin. These bits are then processed once again, sifted and the large fragments are processed again. This continues till all the fragments have turned to powder.
Some people like their masala strong and others prefer theirs to be mild. It all depends on personal tastes and preferences. Most people either grind their own masala or buy them from shops or suppliers that specialise in spices.