Section 31 CrPC: Sentence in Cases of Conviction of Several Offences at One Trial
Section 31 of the Code of Criminal Procedure, 1973 governed the manner in which a criminal court could impose sentences when a person was convicted of two or more offences in the same trial. It dealt principally with consecutive and concurrent sentences, the aggregate limit on consecutive imprisonment, and the treatment of the aggregate sentence for appeal.
Text and meaning of Section 31 CrPC
Section 31(1): Where a person is convicted at one trial of two or more offences, the court may, subject to Section 71 of the Indian Penal Code, 1860, impose the several punishments prescribed for those offences which the court is competent to inflict. Where those punishments consist of imprisonment, one sentence commences after expiry of the other in the order directed by the court, unless the court directs that they shall run concurrently.
Section 31(2): If the sentences are consecutive, the case need not be sent to a higher court merely because the aggregate punishment exceeds the punishment the court could impose for one offence. Under the CrPC, however, the aggregate imprisonment could not exceed fourteen years and could not exceed twice the amount of punishment the court was competent to inflict for a single offence.
Section 31(3): For an appeal by the convicted person, the aggregate of consecutive sentences imposed under the section is deemed to be a single sentence.
What Section 31 CrPC means
The provision applies when two conditions exist: the accused is convicted at one trial, and the conviction is for two or more offences. The court may impose a lawful sentence for each offence, but it must remain within its sentencing competence and must also respect the substantive limitation contained in Section 71 IPC.
Concurrent sentences run at the same time. Consecutive sentences run one after another. Under Section 31 CrPC, the sentencing court had discretion to direct concurrent running of imprisonment. The Supreme Court has explained that this discretion must be exercised judicially with regard to the nature of the offences and the surrounding aggravating and mitigating circumstances; it is not to be exercised mechanically.
Section 71 IPC and the restriction on multiple punishment
Section 31(1) expressly made the sentencing power subject to Section 71 of the Indian Penal Code, 1860. Section 71 dealt with the limit of punishment where an offence is made up of parts, any of which is itself an offence, or where acts constituting one offence also constitute another offence in the circumstances specified by that provision. Accordingly, Section 31 was a procedural sentencing provision and did not authorise punishment contrary to the substantive limits imposed by the IPC.
Limits on consecutive sentences under the CrPC
These limits were especially relevant to Magistrates exercising the power to impose consecutive sentences. The provision avoided a reference to a higher court merely because the aggregate of lawful consecutive sentences exceeded the court's ordinary sentencing power for one offence, while preserving the two express ceilings.
Supreme Court principles on concurrent and consecutive sentences
In O.M. Cherian alias Thankachan v. State of Kerala, the Supreme Court explained that the discretion under Section 31 must be exercised along judicial lines and that there is no rigid formula applicable to every case. The nature of the offences, the transaction involved and the surrounding circumstances are relevant to the sentencing direction.
In Muthuramalingam v. State represented by Inspector of Police, a Constitution Bench clarified the treatment of multiple life sentences. Since imprisonment for life ordinarily means imprisonment for the remainder of the convict's natural life, multiple life sentences cannot operate consecutively in the literal sense and must run concurrently. The Court also discussed how a term sentence may operate where life imprisonment is imposed.
The Supreme Court has subsequently reiterated that Section 31 gives the court discretion to decide whether sentences for multiple offences tried together should run concurrently, and that neither consecutive nor concurrent sentencing should be treated as an inflexible mechanical rule.
Section 31 CrPC and Section 25 BNSS
| Point | Section 31 CrPC | Section 25 BNSS |
|---|---|---|
| Subject | Sentence for conviction of several offences at one trial | Same subject |
| Substantive cross-reference | Section 71 IPC | Section 9 BNS |
| Concurrent or consecutive direction | Imprisonment operates consecutively unless the court directs concurrency | Court is expressly required, considering the gravity of the offences, to order punishments to run concurrently or consecutively |
| Maximum aggregate imprisonment under proviso | Fourteen years | Twenty years |
| Double-punishment ceiling | Aggregate cannot exceed twice the punishment the court may inflict for a single offence | Retained |
| Appeal | Aggregate consecutive sentences deemed a single sentence | Rule retained |
Practical points
- The provision concerns multiple convictions recorded in one trial.
- The court must impose a legally permissible sentence for each offence before deciding how imprisonment will operate.
- A direction on concurrent or consecutive running can materially affect the effective period of imprisonment.
- The sentencing discretion must be reasoned and exercised judicially, not mechanically.
- For proceedings governed by the BNSS after 1 July 2024, Section 25 BNSS should be consulted instead of relying only on Section 31 CrPC.
Official legal resources
For the authoritative statutory text, see the Code of Criminal Procedure, 1973 on India Code. For the current procedural statute, see the Bharatiya Nagarik Suraksha Sanhita, 2023 on India Code.
Legal note: This page explains Section 31 CrPC in its pre-BNSS statutory context. The applicable procedural law can depend on the date and stage of the proceeding and the statutory savings provisions.