BW Businessworld’ s Manish Kumar Jha catches up with PS Raghavan, Chairman, NSA on India’s Security architecture at Synergia Conclave in Bangalore. The nature of warfare is rapidly changing; The drones’ attack in Saudi Arabia has reverberated the need to redefine the security paradigm and that is something starkly home to India. Whether the doctrine of India’s grand security architecture is also rapidly making the change? India’s top security advisor, PS Raghavan speaks on such issues on the lines of National Security management System. on Indigenisation, Raghavan remarked that it is about how progressively our acquisition can be transferred into an indigenous capacity. He also talks about the role of the Chief of Defence Staff (CDS) and the role of National Security Advisor (NSA).