Fahim Ansari alias Abu Zarar had taken Shantabai’s room on a rent of Rs 3,000 a month for fidayeens (suicide squad members) who planned to attack the Bombay Stock Exchange, investigators have found.

Ansari was one of the eight people arrested by the UP police in connection with the attack on the CRPF camp in Rampur. The Anti-Terrorist Squad took him to Mumbai on Thursday evening for further investigations.