Basic objective of this lecture is to explain on Void Contracts, here briefly describe on how it occurs, when it happens and related situations. An agreement can be void for unlawful agreement , unlawful consideration , lack of consideration, lack of capacity, mutual mistakes etc. Contracts may be illegal if the performance involves violation of civil law unlawful or a if it is a criminal act , or even if the performance is deemed by the courts to be contrary to the interests of the public.