CBI sources today said recovery was made after the he was taken into custody in connection with the case on December 18 making it first such arrest in the high-profile corruption case.
The sources said besides gold (worth about Rs 50 lakh as per present rates) agency has also found documents of properties which are being evaluated.
They said the agency might soon call some big fish for examination in the case.
The sources claimed that the agency had found details of how the bribe received for various projects percolated to even the lowest rung of officials working in the Noida.
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CBI had registered a case against Yadav Singh on allegations of criminal conspiracy, cheating, forgery and provisions of Prevention of Corruption Act against him.
There is also a second case of allegedly amassing disproportionate assets.
Ramendra has been arrested in the case of corruption, the sources said.
Yadav Singh is believed to have been handling projects worth Rs 8,000 crore in Noida and was also made Chief of the Yamuna Expressway project for a brief period by the state government.