Khan, who was arrested on February 13, was produced before the court last evening.
Seeking his remand, the special cell of the police told the court that he was required to be quizzed in relation to the Batla House case and in various other serial blasts in Uttar Pradesh, Gujarat and Delhi.
A team of Delhi Police's special cell had arrested the 32-year-old suspected terrorist from Banwasa, along the Indo-Nepal border, on February 13.
Khan was an alleged member of IM's Azamgarh (Sanjarmur) module and was based in Nepal where he was teaching at a school. His associate, Tauqueer, was arrested earlier by the Delhi Police in January this year, police said.
He was wanted by the Delhi Police in connection with serial blasts in September 2008 in the national capital in which about 30 people were killed and over 100 injured. He was also wanted in the Batla House encounter in the same year in which Delhi Police Inspector Mohan Chand Sharma was killed.
He was linked with deadly terror strikes in which about 165 people were killed and over 535 were injured, police said. Interpol had issued a red corner notice against him.
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