A Bench comprising justices G S Singhvi and V Gopala Gowda said the appointments made by the Governor were illegal as the aid and advice of the council of ministers was not taken into consideration.
It said that as per the University Grant Commission Rule, the Governor was bound to act in consultation with the state government.
The apex court asked the government to constitute a fresh selection committee within a month to complete the appointments of VCs and pro-VCs within three months.
It had said the senior most Dean of each university will perform the function of VCs.
Bihar government and some of the professors had challenged the appointment made by Konwar.
The Patna High Court had on December 7, 2012 quashed the appointment of six of the eight VCs by the Governor on the ground that the state government was not consulted.