The matter came to light recently after OC officials faced legal notices from the companies seeking their outstanding payments related to the works done by them in the run up to the sporting extravaganza held during October 3-14, 2010.
"There is deficiency in documents related to the contracts executed by the OC for various works," said Jarnail Singh, Chief Executive Officer of the Games organising body.
He said that officials are trying to find out the papers related to the documents.
Officials fear that documents might have been intentionally destroyed or removed.
The OC, which is under lens of investigating agencies for alleged financial irregularities, is facing about 30 legal cases filed by private companies and some of its former employees over various matters.
According to the official, the cases have been filed in various courts here and in Pune related to the dispute in finance, workforce, catering, merchandising, cleaning and waste management, technology and other functional areas.
"There are 30 court cases going on. They are at different stages. Some firms have also served legal notices seeking to settle works related issues," Singh said.
He said that OC lawyers are attending to the legal cases in various courts.
"There are firms who have gone to court seeking pending payments. All of them were denied payments by OC as they did not work properly," Singh said.