Non-bailable warrant basically implies that the person concerned will be arrested on the basis of such warrant and will be produced before the court which issued the warrant. Once so produced, the court has the power either to send him to custody (depending on the offence committed) or to grant him bail. Therefore, even after a non-bailable warrant (NBW) is issued, bail can be granted by the court, though it may depend on the facts of each case as to after how many days the bail would be granted; it may be immediately after production before the court after executing NBW or may be after some days.
Secondly, sometimes, the NBW may be got cancelled by the person concerned surrendering before the court on his own, whereupon, again, the court may, in its discretion, grant bail to the person or send him to custody.
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