Section 178 of IPC 1860: Refusing oath or affirmation when duly required by public servant to make it
Refusing oath or affirmation when duly required by public servant to make it-Indian Penal Code
Whoever refuses to bind himself by an oath or affirmation to state the truth, when required so to bind himself by a public servant legally competent to require that he shall so bind himself, shall be punished with simple imprisonment for a term which may extend to six months, or with fine which may extend to one thousand rupees, or with both.