In criminal matters, after a judgement is signed, judges don't have power to change it, even if there may be some mistake appearing on face of judgement.
In civil matters there are power to review judgements. In criminal matters, once judgement is signed by a judge, he has no power to alter or review a judgement.
If there is any mistake, it can be corrected by only higher courts.
Ref: State of Punjab vDavinder Pal Case judgement dated 7/12/11
Sec.362 Cr PC
Haresh Raichura
11/7/13
