In this criminal appeal filed under Section 21 of the National Investigation Agency Act, 2008 (NIA Act), the appellants—Ukrainian nationals arrested under Section 18 of the Unlawful Activities (Prevention) Act, 1967 (UAPA)—challenged an order passed by the Special Judge (NIA Court) extending their judicial custody and the investigation period from 90 to 180 days pursuant to Section 43D(2)(b) of the UAPA. A Division Bench of the Delhi High Court addressed the maintainability of the appeal and held that an order granting an extension of time for investigation is an interlocutory order, meaning that an appeal under Section 21 of the NIA Act is not maintainable. However, to prevent procedural delays and multiplicity of proceedings, the court exercised its inherent jurisdiction and directed that the appeal be renumbered as a petition under Section 482 of the CrPC / Section 528 of the BNSS to be listed before the appropriate Roster Bench.
- Maintainability under Section 21 of the NIA Act: The court noted that Section 21(1) of the NIA Act bars appeals from interlocutory orders. While an earlier coordinate bench decision (Anamul Ansari) held that an order refusing an extension has finality and is appealable by the State, the current bench examined whether the same applies to an order granting an extension.
- Distinction Between Granting and Refusing Extension: The court drew a distinction, noting that when an extension is granted, the accused’s right to default bail is not completely destroyed or rejected; rather, it is merely postponed or deferred from the 91st day to the 181st day upon the satisfaction of statutory conditions. Therefore, an order granting an extension does not have finality or irretrievable consequences.
- Interlocutory Nature of the Order: Relying on full bench and division bench precedents from the Gauhati High Court (Akhil Gogoi, Jai Kishan Sharma) and previous Delhi High Court rulings (Syed Shahid Yousuf), the court affirmed that an order extending custody for investigation is purely interlocutory and cannot be challenged via a statutory appeal under Section 21 of the NIA Act.
- Alternative Remedy and Judicial Review: Although statutory appeals under the NIA Act are barred for interlocutory orders, such orders remain judicially reviewable under the inherent powers of the High Court pursuant to Section 482 of the CrPC (or Section 528 of the BNSS).
- Final Directions:
- The preliminary objection regarding the maintainability of the criminal appeal under Section 21 of the NIA Act was sustained.
- Acceding to the appellant’s request to avoid procedural delays in obtaining fresh documentation while in custody, the court ordered that the appeal be renumbered as a petition under Section 482 of the CrPC / Section 528 of the BNSS and placed before the concerned Roster Bench for adjudication on merits.




