Solitary confinement can be used as often and for as long as the jail wants, as part of any prison sentence.

The law strictly caps solitary confinement at 14 days per stretch, requires rest intervals, and limits it to 7 days per month for longer sentences — courts have treated exceeding these limits as unlawful.

Solitary confinement is a routine part of every prison sentence.

Solitary confinement is a distinct, specifically ordered part of a sentence, not automatic; it only applies when a court has specifically sentenced someone to it.

Bharatiya Nyaya Sanhita, 2023

Section 12

Limit of solitary confinement

In executing a sentence of solitary confinement, such confinement shall in no case exceed fourteen days at a time, with intervals between the periods of solitary confinement of not less duration than such periods; and when the imprisonment awarded shall exceed three months, the solitary confinement shall not exceed seven days in any one month of the whole imprisonment awarded, with intervals between the periods of solitary confinement of not less duration than such periods.§

Why this exists

Solitary confinement was historically used as an additional, harsher punishment layered onto ordinary imprisonment. Recognizing that prolonged isolation can cause serious psychological harm, 19th-century Indian criminal law (originally Section 73–74 of the Indian Penal Code, 1860) built in strict caps and mandatory rest periods. The Bharatiya Nyaya Sanhita, 2023 carries forward this safeguard almost verbatim, continuing the legislative intent to prevent solitary confinement from becoming a form of prolonged, unchecked cruelty within a lawful sentence.

How courts read it

Indian courts, notably in Sunil Batra v. Delhi Administration (1978), examined solitary confinement and highlighted that prolonged isolation without proper legal authority or in breach of statutory limits could violate constitutional protections against inhuman treatment. While that case dealt primarily with prison administration rather than this exact section, it reinforced the broader judicial view that provisions like this one (and its IPC predecessor) must be read strictly to protect prisoners from excessive isolation, and that any solitary confinement exceeding these statutory limits would be unlawful.

Common misconceptions

Myth: Solitary confinement can be used as often and for as long as the jail wants, as part of any prison sentence.
Fact: The law strictly caps solitary confinement at 14 days per stretch, requires rest intervals, and limits it to 7 days per month for longer sentences — courts have treated exceeding these limits as unlawful.
Myth: Solitary confinement is a routine part of every prison sentence.
Fact: Solitary confinement is a distinct, specifically ordered part of a sentence, not automatic; it only applies when a court has specifically sentenced someone to it.