"I am amazed by this kind of outrageous demands," Chidambaram told reporters here.
"Ahmed Patel was a trustee of the hospital and had resigned in 2015. This person who was arrested seems to have joined the hospital as a technician last year and had resigned a couple of days prior to his arrest," the former Union minister said.
Yesterday, Gujarat Chief Minister Vijay Rupani demanded Patel's resignation as Rajya Sabha MP, alleging that a suspected ISIS operative arrested recently used to work at a hospital where Patel had been a trustee earlier.
Patel had rejected the charge as "completely baseless" and urged the BJP not to politicise matters pertaining to national security and divide the peace-loving Gujaratis.
Rupani was referring to the recent arrest of two suspected ISIS operatives by the Gujarat Anti Terrorist Squad (ATS).