Zadil Pervez, resident of Khijrabad Colony here, was taken into custody by the Maharashtra ATS yesterday, Khajrana police station in-charge Kamlesh Sharma said.
Zadil was allegedly in contact through Facebook with one Tabrez from Thane in Maharashtra who is the main accused in the UAPA case, Sharma said.
Zadil hails from neighbouring Ujjain district and was living with relatives in Khijrabad Colony for the last two months, he said.
Zadil's brother Aamil was among the 13 SIMI activists arrested from Shyam Nagar here on March 26-27, 2008, with weapons and other objectionable material.