Speaking to IANS, G.Sundarrajan, an anti-nulcear power activist who has filed a case against KNPP in the Supreme Court, said: "The first unit was connected to the grid last October and it is more than six months but NPCIl has been postponing the commercial operation of the unit without giving proper reasons." According to NPCIl, the first KNPP unit is expected to begin its commercial operations this month.