4.14 Regarding the treatment given to the Network Augmentation Charges, the Appellant submitted that the specific ground relating to the nonconsideration of Rs. 4.54 crores paid to the State Transmission Utility (GETCO), as uncontrollable O&M expenses was also urged.In terms of connectivity at 220 kV level with the Switchyard of the State Transmission Utility (GETCO), the STU directed part of the said 220 kV network to be created by the Appellant on behalf of GETCO. Further, as the work is completed and the cost has been incurred, the Appellant made the provision of Rs. 4.54 crores as part of its O&M expenses for laying this network. The same was duly verified and approved as an item of O & M expense by the Respondent Commission. The Appellant had prayed to treat the variation in the O & M Expense on account of Network Augmentation Charges as uncontrollable as it was beyond the control of the Appellant. It is also pointed out that same was not factored in approved O&M Expenses as O&M expenses were approved based on past trend. Further, this expense was incurred to source higher quantum of electricity to cater to the demand of the consumers of the licensee. However, the Respondent Commission in the impugned tariff order dated 31.03.2016 has treated this expenditure as controllable without dealing with the factors, grounds, reasons and rationale and submissions of the Appellant, regarding treating the said tariff item as uncontrollable. Therefore, the impugned order dated 31.03.2016 in its treatment of the said expense, is contrary to the principles of natural justice.