Section 11 in THE BHARATIYA NYAYA SANHITA, 2023 – BNS

Solitary Confinement.

11. Whenever any person is convicted of an offence for which under this Sanhita the
    Court has power to sentence him to rigorous imprisonment, the Court may, by its sentence,
    order that the offender shall be kept in solitary confinement for any portion or portions of the
    imprisonment to which he is sentenced, not exceeding three months in the whole, according
    to the following scale, namely:—
    (a) a time not exceeding one month if the term of imprisonment shall not exceed
    six months;
    (b) a time not exceeding two months if the term of imprisonment shall exceed six
    months and shall not exceed one year;
    (c) a time not exceeding three months if the term of imprisonment shall exceed
    one year.