Discrete Symmetries and Generalized Fields of Dyons

We have studied the different symmetric properties of the generalized Maxwell's-Dirac equation along with their quantum properties. Applying the parity (P), time reversal (T), charge conjugation (C) and their combined effect like parity time reversal (PT), charge conjugation and parity (CP) and CPT transformations to various equations of generalized fields of dyons, it is shown that the corresponding dynamical quantities and equations of dyons are invariant under these discrete symmetries.