On 19 May 2009, user trial of Agni-II was undertaken by Indian Army, while DRDO scientists provided required logistical support. The Agni-II missile was tested at 1006 hrs IST from a defence base in Orissa. The missile was test fired from launch pad-4 from Integrated Test Range. Integrated Test Range is the missile testing facility on the Wheeler Island, near Dhamara in the district of Bhadrak. Initially it was announced by Indian media that India has successfully tested the nuclear capable Agni-II missile from a defence base in Orissa. According to official sources, the aim of the test was to give the Indian Army confidence to fire the missile on its own. The May 2009 test however ended in failure of the Agni II when the second stage failed to operate correctly and the missile started to veer wildly off course. In a subsequent re-test at night time on Nov 2009, the missile once again failed completely at the second stage, this time dropping directly into the sea. On 17 May 2010, the missile was flight-tested successfully from Wheeler Island off the Orissa coast. The flight lasted 660 seconds, with the missile achieving its full range, after which it splashed into the sea at the predesignated target. A new navigation system which provides better accuracy as well as the capability, to manoeuvre and defeat anti-ballistic missiles was tested during the trial. This was a training trial by the Indian Army. On 30 September 2011 another successful launch of Agni-II was conducted from Balasore, Orissa. The missile was fired from a rail mobile launcher and struck target 2000 km away within 10 minutes of launch, meeting all the performance parameters of the mission such as velocity, terminal phase, trajectory and destruction of the warhead. Another test was done on 9 August 2012, when the missile was successfully launched from Orissa by the Strategic Forces Command as a part of a training exercise.
On Sunday, 7 April 2013, India again test fired Agni-2 ballistic missile with range of more than 2000 km, from Wheeler Island, Odisha at 10:20 AM. The test was carried out by the Strategic Forces Command of the Indian Army as part of training exercise with logistic support provided by the DRDO. The test was a complete success as per Mr. Prasad, the director of Integrated Test Range.
Half a km into trajectory is very troubling. And indicates a new problem.
Guess we need better description of the issue.