Chautala claimed 27 acres of land in Shakarpuri village in Mewat district, 75 km from Delhi, was sold between May 11 and 25, 2009, for Rs 2 lakh per acre, while the circle rate, or the minimum rate set by the government, was Rs 16 lakh, and the market rate was Rs 50 lakh.
Of the 27 acres, 17 acres of the land belonged to Ahmed's wife, mother and two sisters-in-law.
While Ahmed admitted the family land was sold to Real Earth Estate Pvt Ltd, he said it was just "a coincidence" that the company's director was Robert Vadra.
In his defence, he also pointed out that he had contested elections twice before and his family had a strong political legacy.
His grandfather Kabir Ahmed was elected MLA twice and his father Khurshid Ahmed was a minister in Haryana three times, winning his last election as an MLA in 1996.