National Security Adviser M K Narayanan has termed former DRDO scientist K. Santhanam's claims on Pokhran-II nuclear tests as horrific and asserted that India has thermo-nuclear capabilities which have been verified by a peer group of researchers. <br/> In an interview to a TV channel, he said the Atomic Energy Commission, AEC had last week come out with the "most authoritative" statement on the efficacy of the 1998 nuclear tests and no more clarification is required from the government on the matter. <br/> Mr. Narayanan said the AEC, an independent Commission and the highest body in such matters, was asked to study the data of the 1998 nuclear tests once again in the wake of the controversy over the efficacy of the hydrogen bomb following the statements by Mr. Santhanam. <br/> Eminent scientists like C N R Rao, P Rama Rao and M R Srinivasan were members of the AEC and the doyen of the nuclear programme Raja Ramanna was part the apex nuclear body which went into the test results in 1998. Mr.Narayanan also said that Mr. Santhanam is not privy to the information on which the test measurements were taken.