The Defence Intelligence Agency (D.I.A.) is an organisation responsible for providing and coordinating intelligence for the Indian armed forces. It was created in March 2002 and is administered within the Ministry of Defence.
It is the nodal agency for all defence related intelligence, thus distinguishing it from the RAW. Much of the agency's budget and operations are classified. DIA has control of Indian Army's prized technical intelligence assets – the Directorate of Signals Intelligence and the Defence Image Processing and Analysis Centre (DIPAC). While the Signals Directorate is responsible for acquiring and decrypting enemy communications, the DIPAC controls India's satellite-based image acquisition capabilities. The DIA also controls the Defence Information Warfare Agency (DIWA) which handles all elements of the information warfare repertoire, including psychological operations, cyber-war, electronic intercepts and the monitoring of sound waves. Its operations are highly classified and has several success to its credit which will remain a secret.
Together with Research and Analysis Wing (R&AW), National Technical Research Organization (NTRO), Intelligence Bureau (IB),& Directorate of Revenue Intelligence (DRI), DIA forms a part of India's nodal intelligence setup.
The creation of an intelligence agency coordinating the intelligence arms of the three military services had long been called for by senior Indian military officers. It was formally recommended by the Cabinet Group of Ministers, headed by the then Deputy Prime Minister of India Lal Krishna Advani. The Group of Ministers investigated intelligence lapses that occurred during the Kargil War and recommended a comprehensive reform of Indian intelligence agencies. The Defence Intelligence Agency was created and became operational in March, 2002. As part of expanding bilateral cooperation on gathering intelligence and fighting terrorism, the United States military also provided advice to Indian military officers on the creation of the DIA.