Please clarify

Depends on the stage of the trial . Unless iof course u are referring to pleading guilty, in which case yes, the sentence is substantially reduced. Numerous judgements to support that.

The word “confession” appears for the first time in Section 24 of the Indian Evidence Act. This section comes under the heading of Admission so it is clear that the confessions are merely one species of admission. Confession is not defined in the Act.Confession is an admission made at any time by a person charged with a crime stating or suggesting the inference that he committed that crime.