Shimla: The transmission of power from the hydel projects located in the Chandrabhaga basin will be undertaken through the 9-km-long Rohtang tunnel, thereby reducing the total cost of transmission by several crores. The state government has already held talks with the Rohtang tunnel authorities to allow the transmission of power through the Rohtnag tunnel by way of gas-filled cables. In case the proposal comes through, it will be for the first time anywhere in the state that power transmission will take place through gas-filled cables.