Taking suo motu notice of the media reports about Yadav's visit during electioneering, a bench comprising Justice N Santosh Hegde and Justice BP Singh issued notices to the two top officials of the state government and asked them to explain as to how he was moving freely in the constituency.
The court asked them to explain as to how many days the accused was kept in jail, the number of days in hospital and the number of days he was allowed to "roam around".
The same bench, on a petition filed by the brother of the deceased Sarkar, had cancelled the bail granted to Yadav by the Patna High Court and had asked CBI to take him into custody.
On the direction of the court, the investigating agency had arrested the accused and had taken him to Patna for him to stand trial there.
However, recent TV reports showed Yadav, who was an MP from Purnea in the dissolved Lok Sabha, roaming around in Madhepura constituency.