The Supreme Court had ordered a CBI inquiry on March 1, 2007 into the alleged accumulation of disproportionate assets by the Yadav family, on a PIL by an advocate Vishwanath Chaturvedi.

The agency filed a status report in 2007 alleging that the Yadavs owned had an income of Rs 6.23 crore while expenditure was Rs 4.45 crore but they managed to acquire assets worth Rs 4.41 crore and hence Rs 2.63 crore worth of assets were disproportionate to their declared sources of income.