panic gripped after a blast threat was made on monday if those arrested in the drug peddling case were not released immediately the threat was made through a letter written by an unknown person in three separate onepage letters that were received at special courts handling the drug cases in the city offices of city police commissioner and the joint commissioner of police crime the miscreant even demanded that actors ragini dwivedi and sanjjanaa galrani who have been in judicial custody must be released or else there will be action taken against the judge similar threats were made against police commissioner kamal pant and other senior officers who are investigating the case the envelope which was sent to the judge contained the threat letter and suspicious material like wires and pieces of detonators police officials have registered a case in the matter both the actresses have been in judicial custody for nearly a month ragini and sanjjanaa had applied for bail but that was denied by the special ndps court where it was said that the investigation was in the preliminary stages and accused being out on jail could hamper the process ragini was arrested on september 4 after her house was raided followed by a long investigation at the central crime branch office sanjjanaa was arrested four days later on september 8 in a similar fashion where there was a raid in her residence and then she was arrested after an interrogation at the ccb office the two actresses initially spent days in the ccb custody in a remand home following which they were sent to the central jail