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.
Earlier, during the pendency of the matter, the apex court had on March 18 stayed the notifications issued in this regard on February 9 and March 14. 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.
The High Court had also directed the Chancellor to make a The High Court had also directed the Chancellor to make a fresh list of candidates for appointment of the VCs and Pro-VCs.
However, the same persons were later re-appointed. Shambhu Nath Singh and Arun Kumar were appointed as the Vice-Chancellor of Patna University and Magadh University respectively.
Md Samsuzoha was appointed Mazhrul Haque Arabic and Persian University VC and Ram Vinod Sinha Vice-Chancellor of B N Mandal University, Madhepura.
Vimal Kumar and Kumaresh Prasad Singh were appointed VCs of Jai Prakash University, Chapra, and B R Ambedkar University, Muzaffarpur respectively.
Arvind Pandey and Shiv Shankar Singh were made the VCs of Kameshwar Singh Sanskrit University, Darbhanga and Veer Kunwar Singh University, Ara respectively.
After the announcement that Konwar was being replaced as Bihar Governor, he appointed Anjani Kumar Sinha as VC of Tilka Manjhi Bhagalpur University and Raja Ram and Padmasha Jha as pro-VC of Patna University and Bihar University, Muzaffarpur respectively on March 14.