Is it possible for a judge to exceed the legal punishment?

1.Whether a judge (be it a district judge or an Hon'ble High Court Judge or an Hon'ble Supreme Court Judge) have the power to award excess punishment (particularly imprisonment) than what is prescribed in law at force. 2. If there is such a power, kindly provide information regarding the section(s) of the specific act or article(s) of the Indian constitution that confers such power to Judges. 3. Latter part of Art 20(1) of Indian constitution clearly says 'no greater penalty'. Article 20: Protection in respect of conviction for offences: (1) No person shall be convicted of any offence except for violation of the law in force at the time of the commission of the act charged as an offence, nor be subjected to a penalty greater than that which might have been inflicted under the law in force at the time of the commission of the offence.