New Delhi, Oct. 30 -- The Supreme Court on Wednesday sought Centre's response to an amended application by the wife of activist Sonam Wangchuk challenging his detention under the stringent National Security Act. The latest application alleges procedural illegalities in the conduct of the Advisory Board that considered his representation last week. A bench of justices Aravind Kumar and NV Anjaria allowed the application raising the additional grounds by Gitanjali Angmo, Wangchuk's wife, who has termed the activist's detention illegal for being in violation of his constitutional rights and the procedure laid down under the NSA, 1980. Posting the matter on November 24, the bench permitted the amended petition to be filed within a week and directed solicitor general Tushar Mehta representing the Centre to file a response along with additional documents. The court even permitted Angmo to respond to the Centre's affidavit that was filed to be filed in response to the amended petition before the next date of hearing. In the brief hearing on Wednesday, senior advocate Kapil Sibal appearing for the petitioner said that based on the Supreme Court's October 16 order, Angmo was permitted to exchange notes with her husband, who is currently lodged at Jodhpur jail. The application moved by Angmo stated that she was allowed to assist Wangchuk before the three-member Advisory Board that held a sitting at the jail on October 24. However, she informed the court that despite repeated requests, the full grounds of detention along with the representations made by Wangchuk while in jail were not supplied to her. "The hearing before the Advisory Board was conducted in violation of the procedural safeguards under the NSA," said Angmo's application filed by advocate Sarvam Ritam Khare. The application seeking amending her petition further claimed that Wangchuk's arrest on September 26 cannot be sustained in law as it is based upon irrelevant grounds, stale FIRs, extraneous material, self-serving statements, and suppression of information. Wangchuk, who is a Ramon Magsaysay award winner, was detained followed protests in Ladakh demanding statehood for the Union Territory and inclusion under the Sixth Schedule of the Constitution. The demonstrations, initially peaceful, turned violent on September 24, leaving four civilians dead and several injured. The Ladakh administration had earlier told the court that Wangchuk was detained after the district magistrate (DM) was "satisfied" that the activist was "indulging in activities prejudicial to the security of the state, maintenance of public order and services essential to the community."...