The crux of the allegations made by Arvind Kejriwal and his team is that businessman Robert Vadra, who is the son-in-law of Congress president Sonia Gandhi, got property worth hundreds of crores at throwaway prices along with interest-free loans from real estate giant DLF in return of favours by Congress governments in various states. Those allegations have been strongly denied by both Mr Vadra and DLF, but NDTV's Sreenivasan Jain now explains some of the question-marks.