authorise his detention in such custody, as he may think fit, for a term specified in that section. The proviso to subsection (2) fixes the outer limit within which the investigation must be completed and in case the same is not completed within the said prescribed period, the accused would acquire a right to seek to be released on bail and if he is prepared to and does furnish bail, the Magistrate shall release him on bail and such release shall be deemed to be grant of bail under Chapter XXXIII of the Code of Criminal Procedure…Section 167 read with Section 20(4) of TADA, thus, strictly speaking is not a provision for “grant of bail” but deals with the maximum period during which a person accused of an offence may be kept in custody and detention to enable the investigating agency to complete the investigation and file the charge sheet, if necessary, in the court. The proviso to Section 167(2) of the Code read with Section 20(4)(b) of TADA, therefore, creates an indefeasible right in an accused person on account of the ‘default’ by the investigating agency in the completion of the investigation within the maximum period prescribed or extended, as the case may be, to seek an order for his release on bail. It is for this reason that an order for release on bail under proviso (a) of Section 167(2) of the Code read with Section 20(4) of TADA is generally termed as an “order-on-default” as it is granted on account of the default of the prosecution to complete the investigation and file the challan within the prescribed period. As a consequence of the amendment, an accused after the expiry of 180 days from the date of his arrest becomes entitled to bail irrespective of the nature of the offence with which he is charged where the prosecution fails to put up challan against him on completion of the investigation. With the amendment of clause (b) of subsection (4) of Section 20 read with the proviso to subsection (2) of Section 167 of CrPC an indefeasible right to be enlarged on bail accrues in favour of the accused if the police fails to complete the investigation and put up a challan against him in accordance with law under Section 173 CrPC. An obligation, in such a case, is cast upon the court, when after the expiry of the maximum period during which an accused could be kept in custody, to decline the police request for further remand except in cases governed by clause (bb) of Section 20(4). There is yet another obligation also which is cast on the court and that is to inform the accused of his right of being released on bail and enable him to make an application in that behalf. (Hussainara Khatoon case [Hussainara Khatoon v. Home Secy., State of Bihar, (1980) 1 SCC 98 : 1980 SCC (Cri) 40 : AIR 1979 SC 1369] ). This legal position has been very ably stated in Aslam Babalal Desai v. State of Maharashtra [(1992) 4 SCC 272 : 1992 SCC (Cri) 870 : AIR 1993 SC 1] where speaking for the majority, Ahmadi, J. referred with approval to the law laid down in Rajnikant Jivanlal Patel v. Intelligence Officer, Narcotic Control Bureau, New Delhi [(1989) 3 SCC 532 : 1989 SCC (Cri) 612 : AIR 1990 SC 71] wherein it was held that : (SCC p. 288, para 9) “The right to bail under Section 167(2) proviso (a) thereto is absolute. It is a legislative command and not court's discretion. If the investigating agency fails to file charge- sheet before the