A patient believes he is the most impoant person in the world than anyone so his neighbors and family is trying to harm him as they are jealous of him. His wife says otherwise and says he behaves like this recently only before he was working as a school-teacher peacefully and brought to OPD. He is suffering from:

Ans. d. Delusion of grandiosity, persecution and reference The given description suggests that the patient is having delusion of grandiosity, persecution and reference.Delusion of grandeurExaggerated conception of one's impoance, power, or identity.Delusion of persecutionFalse belief of being harassed or persecuted; often found in litigious patients who have a pathological tendency to take legal action because of imagined mistreatment.MC delusion.Delusion of referenceFalse belief that behavior of others refers to oneself or that events, objects, or other people have a paicular & unusual significance, usually of a negative natureDerived from idea of reference, in which persons falsely feel that others are talking about them (e.g., belief that people on television or radio are talking to or about the person).