Prannoy and Radhika Roy are the progenitors of private TV news in India. Earlier this week they resigned from RRPR, a holding company that owns 29 per cent of NDTV, the news network they founded. AMG Media Network, a part of the $23-billion Adani Group, acquired RRPR, triggering an open offer for another 26 per cent. When it gets the remaining share, Chairman Gautam Adani, the world’s third-richest man, would own just over 55 per cent of one of India’s most trusted news broadcasters. If that happens, the Roys, who still own over 32 per cent and are executive co-chairpersons,