The first Director General of the DIA was Lt. The post of the director general will be held in rotation between the three armed services. The director general is the principal advisor on intelligence to the Minister of Defence and the Chief of Defence Staff. The Director General of the Defence Intelligence Agency is the head of the entire organisation. 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. The Defence Intelligence Agency was created and became operational in March, 2002. The Group of Ministers investigated intelligence lapses that occurred during the Kargil War and recommended a comprehensive reform of Indian intelligence agencies. It was formally recommended by the Cabinet Group of Ministers, headed by the then Deputy Prime Minister of India Lal Krishna Advani. 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 created in March 2002 and is administered within the Ministry of Defence.

The Defence Intelligence Agency ( DIA) is an intelligence agency responsible for providing and coordinating defence and military intelligence to the Indian Armed Forces.

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