Terming Vadra as "damad shri (honoured son-in-law)", Prasad claimed land acquisitions by Vadra's firms had flouted several laws, including the Land Acquisition Act in Congress-ruled Haryana and in Rajasthan where the party was earlier in power.
The BJP released a video and a six-page booklet - "Damad shree the Vadra 'get-rich-quick' model" - on Vadra's land deals.
The video made repeated attacks at Vadra and said the people will not forgive the Congress in the Lok Sabha election. The booklet posed several queries to Sonia Gandhi and Rahul Gandhi on Vadra's land deals and asked them to come clean.
The video said while there were cases of "bhai bhatijavad (nepotism)", Vadra had added a new tradition of "damadvad (son-in-law favouritism)".
The BJP said the booklet will be distributed in different parts of the country.
