The Supreme Court has said there should be zero judicial tolerance for illegal constructions of buildings and other structures as the menace has acquired monstrous proportion .In a hard-hitting verdict, a bench of Justices G S Singhvi and S J Mukhopadhaya said unauthorised constructions not only violate municipal laws and the concept of planned development but also affect various fundamental and constitutional rights of other people.The apex court passed the order on an appeal challenging Calcutta High Court's order allowing construction of amulti-storied building by a Construction company.