The Vigilance Court here on Monday sought an explanation from the State government on or before April 26 for having reinstated Inspector-General of Police Tomin J. Thachankary in service.
He had been suspended for allegedly visiting Qatar without informing the government.
He is alleged to have made contacts with fundamentalist outfits during his visits to foreign countries.
Special Judge, Vigilance, V. Bhaskaran issued the directive to the State government on the basis of a petition filed by P.D. Joseph, social activist.
The petition argued that Mr. Thachankary was reinstated without the approval of the Union government. The petition termed false the government's reported claim that it had sought the Centre's permission to prosecute him.
On March 30, the court had posted for hearing on April 30 a petition against alleged delay in prosecuting Mr. Thachankary.
Venugopalan Nair, Deputy Superintendent of Police, Vigilance Special Cell, told the court then that a final report on the case was pending as Centre had not given its nod for the prosecution.
The apex court had set a four-month deadline for the government to decide the issue of giving sanction for prosecution of public servants facing corruption charges.