Tata Power has once again lost the bid for acquiring the stake of Temasek Holdings in Singapore's largest power generating firm Senoko Power, to Japan's Marubeni which agreed to pay nearly $2.5 billion in cash. After losing out Tuas Power and Senoko Power in a row, company sources tell NDTV that the Indian power major is all set to bid for PowerSeraya, Singapore's third power utility also owned by Temasek which is up for sale.