Analysis: Why intel experts oppose NCTC It's not just UPA's main ally Mamata Banerjee or Odisha Chief Minister Naveen Patnaik who are opposing the National Counter Terrorism Centre (NCTC), but even Research and Analysis Wing (R&AW) - India's external intelligence agency - had put up a red flag way back in early2010. And, theirs was, perhaps, the first dissent that the Home Minister P Chidambaram faced.