A suspected activist of the Students Islamic Movement of India has been detained from in Patna for questioning in connection with the Mumbai serial blasts on July 11, police said on Saturday.

Ziauddin Ansari, who allegedly had links with  the banned SIMI, was taken into custody from Phulwarisharif late on Friday night, Senior Superintendent of Police Kundan Krishnan said.

His detention followed an advisory from Anti-Terrorist Squad of the Mumbai police, which suspected Ziauddin's involvement in the blasts in Mumbai suburban trains that claimed 201 lives.

The man is being interrogated at Phulwarisharif police station, Krishnan said.