The court sought a response within 10 weeks on the petitions filed by two former SIMI members.

An apex court bench issued the notice after senior counsel UU Lalit, appearing for Humam Ahmad Siddiqui and Misbahul Islam, challenged the constitutionality of the Act. Lalit told the court that several petitions challenging the ban were pending before the court since 2002. He added that such bans were illegal and violated the fundamental rights of citizens and erstwhile members.