Section 213 in THE BHARATIYA NYAYA SANHITA, 2023 – BNS

Refusing oath or affirmation when duly required by public servant to make it.

213. 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 five thousand rupees, or with both.

Read also : Section 106 in THE BHARATIYA NYAYA SANHITA, 2023 – BNS