Sehrai, 77, a close confidant of hardline Hurriyat Conference leader Syed Ali Shah Geelani, was incarcerated at the district jail in Udhampur.
Solicitor General Tushar Mehta filed the response on behalf of the Jammu and Kashmir administration on Sara Abdullah Pilot's plea before a bench of justices Arun Mishra and Indira Banerjee.
Mehbooba and NC leader Omar Abdullah were on Thursday booked under the stringent Public Safety Act (PSA).
The PSA allows detention of any individual for up to two years without a trial. Ironically, the law was first promulgated during Sheikh Abdullah's tenure, father of Farooq Abdullah.