"He said that the audit of only last eight years is possible as the power companies are not required to keep records older than eight years. This is not true because the Delhi Government has 49 percent stake in BSES Yamuna, BSES Rajdhani, 51 percent is with Anil Ambani's company. Even if Anil Ambani destroys the records, the Delhi Government and the Centre preserve the records," he added.