2. The four categories based on their habitat are: purishaja (origin in fecal matter), shleshmaja (origin in shleshma including body fluids, mucosal layers), raktaja ( origin in blood), malaja (origin in body impurities). | 2. The four categories based on their habitat are: purishaja (origin in fecal matter), shleshmaja (origin in shleshma including body fluids, mucosal layers), raktaja ( origin in blood), malaja (origin in body impurities). |