In a reply to a question, Information and Broadcasting Minister Manish Tewari said of the 8,462 vacancies, 1,314 are Group A posts while there are 1,596 Group B posts, 3,618 Group C and 1,934 group D posts.
Tewari also said that non-availability of language experts on the permanent rolls for Urdu programmes have affected the quality of the 24-hours programme on AIR.
He clarified that the Urdu services are being managed through engagement of retired personnel and through outsourcing.
He said the shortage of staff had arisen because little fresh recruitment had taken place since the formation of Prasar Bharati in 1997.
In response to another question, he said that casual presenters were being booked by AIR stations on assignment basis.