A bench of Justices Gita Mittal and R K Gauba issued notice to the probe agency and fixed the matter for hearing on August 23.
The bail pleas have been filed by arrested accused -- Abu Anas, Mohammed Afzal, Mohd Hussain, Najmul Huda, Suhail Ahmed, Mohammed Aleem, Asif Ali, Syed Mujahid, Imran, Mufti Abdus Sami Qasmi, Mudabbir Mushtaq Shaikh, Mohd Shareef Moinuddin Khan, Mohammad Obaidulla Khan and Mohd Nafees Khan.
Besides these 14, two other accused -- Adnan Hassan and Mohd Farhan Shaikh -- were also arrested by NIA in a separate case lodged in the same month.
The agency had alleged that they were supporters of ISIS and were in touch with active members of the outfit.
Advocate M S Khan, who represented all the accused, moved the bail pleas against the trial court's order saying it had dismissed their applications despite the fact that neither a charge sheet was filed against them, nor the period of their detention extended.
NIA had earlier alleged that the arrested accused, during interrogation, had admitted to "their involvement in the case regarding recruiting and financing persons willing to join the Caliphate of ISIS at Syria".
They have been arrested for alleged offences under several sections of the Unlawful Activities (Prevention) Act and IPC.
