energy by tampering the meter, such cases of unauthorised use of energy include “theft” as defined under Section 135 of the Act. The power conferred on authorities for making assessment under Section 126(1) of the Act and power to determine civil liability under Section 154(5) of the Act, cannot be said to be parallel to each other. In this regard, we are of the view that the High Court has committed an error in recording a finding, that both proceedings cannot operate parallelly. In a given case where there is no theft of energy, amounting to unauthorized use of energy, in such cases no complaint of theft can be lodged as contemplated under Section 135 of the Act. In such cases for loss of energy, on account of unauthorized use of energy not amounting to theft, it is always open for the authorities to assess the loss of energy by resorting to power under Section 126(1) of the Act. In cases where allegation is of unauthorized use of energy amounting to theft, in such cases, apart from assessing the proceedings under Section 126(1) of the Act, a complaint also can be lodged alleging theft of energy as defined under Section 135(1) of the Act. In such cases, the Special Court is empowered to determine civil liability under Section 154(5) of the Act. On such determination of civil liability by the Special Court, the excess amount, if any, deposited by the petitioner, is to be refunded to the consumer. It is a settled principle that to prove the guilt of the accused in a criminal proceeding, authorities have to prove the case beyond reasonable doubt and the element of mens rea is also to be established. On the other hand, such a strict proof is not necessary for assessing the liability under Section 126(1) of the Act.