Four more days of imprisonment would be added to actor Sanjay Dutt's prison term, as he spent extra days out jail when his furlough period ended and a decision on extension of his furlough was pending, Maharashtra Minister of State for Home Ram Shinde said here today.

A departmental inquiry would ordered against erring prison officials and action would be taken against them for the delay in deciding the extension of furlough, Shinde told reporters.