The Central Bureau of Investigation's probe into the navy war room leak has brought to light the sorry state of security in the defence ministry, with the agency claiming that those involved in the matter had gained access to the top-secret 10th Plan of the three services.

In its 28-page chargesheet filed in a Delhi court against Delhi-based businessman Abhishek Verma, the son of former Congress members of Parliament Shrikant and Veena Verma, the CBI claimed it had recovered documents regarding the minutes of a meeting held in 2004, at which the 10th Plan for the army, navy and air force was dicussed.

The minutes of the meeting to discuss the plan were recovered from a Jet Flash pen drive allegedly belonging to former naval commander Vijender Rana.

The CBI alleged in its chargesheet that the same set of documents had been transferred to Verma.

The chargesheet, accompanied by 62 documents comprising 369 pages, also alleges that Verma was a "front man" for Thales Commuincation company, which has been negotiating with the Indian Air Force for supply of Aerostat balloon defence systems.

The chargesheet claimed to have recovered a document in "pdf" format from a computer, showing him as the Indian agent for Aerostat balloons that are used at the border and fixed with spy cameras with a range of 10-15 km.

Before his arrest, Verma had denied all charges levelled against him in connection with the leak of sensitive information from the navy's war room.