The Indian government has barred four former executives of the Indian Space Research Organisation (ISRO), including one-time chairman Madhavan Nair, from holding future government positions in the latest fallout from a controversial satellite leasing deal.

The action, which was taken Jan. 13 but became public knowledge Jan. 25 via television, stems from a deal between Devas Multimedia and ISRO on the marketing rights to capacity aboard a pair of S-band satellites funded by the agency. Devas, managed by former ISRO officials, obtained those rights at what critics called a below-market price and without competition, sparking an investigation that resulted in the contractโ€™s nullification last year.

Besides Nair, others blacklisted for their alleged role in the deal are K. Bhaskaranarayana, former scientific secretary at ISRO; K.N. Shankara, former director of the ISRO Satellite Centre; and K.R. Sridharamurthi, former executive director of Antrix Corp., ISROโ€™s commercial arm.

In July 2011, Devas, whose stakeholders include Germanyโ€™s Deutsche Telekom, filed for arbitration with the International Court of Arbitration in London.

In a Jan. 26 interview, Nair denied any wrongdoing. โ€œI have not been told what I am charged with,โ€ he said. โ€œOnce I get the details I will decide on a course of action including legal.โ€