The agency claimed that the said documents were recovered during the raids conducted at the premises of Niamat Bakshi on September 7.
Bakshi, who is allegedly a trusted friend and aide of the accused, was working on Puri's direction and was also responsible in manipulating and destroying of crucial evidence, the agency has claimed.
ED further stated in its application that searches were also conducted at Hindustan Power Projects Ltd, a company of Puri and a huge amount of data/document in excess of 2.5 TB has been seized, which is currently being analysed
The application was heard by Special CBI Judge Arvind Kumar who sent Puri to a further custody of five days till September 16.
Puri was produced before the court at the end of his custody. He was arrested by the agency on September 4 in a money laundering case relating to Rs 3,600 crore VVIP chopper deal.
Ratul Puri is under the scanner of probe agencies for allegedly receiving kickbacks in AgustaWestland deal through his companies.
The probe agency has alleged that accounts associated with firms owned and operated by Ratul Puri were used to receive kickbacks and launder money in AgustaWestland deal.
The money laundering case was lodged following alleged irregularities in purchase of 12 VVIP choppers from Italy-based Finmeccanica's British subsidiary, AgustaWestland.