New Delhi: A day after Indian Mujahideen sent a terror e-mail to country’s media organisations, the police on Sunday claimed to have traced the source to Khalsa College in Central Mumbai. Mumbai Anti-Terror Squad (ATS) suspects that the Internet connections of the college Principal and directors were hacked into to send the e-mail. The e-mail hinted at fresh rounds of attack in Gujarat and Maharashtra, for which, the mail warned, the Jehadi group will deploy fidayeen (suicide squads). The same group had sent a similar e-mail just before 17 blasts ripped through Ahemdabad on July 26. The e-mail sent on Saturday included the pictures of the cars believed to have been used in the Ahmedabad blasts. The message vigorously defended the banned group Students Islamic Movement of India (SIMI) and its activists, who were arrested by the Gujarat Police for their alleged involvement in Ahmedabad serial blasts case. The Gujarat Police had recently claimed that the Indian Mujahideen, which has claimed responsibility for at least five bomb blasts over the past year, is a front for the banned group Students Islamic Movement of India (SIMI). Intelligence Bureau sources told CNN-IBN that they were verifying the authenticity of the e-mails and need to arrest more SIMI leaders to know who was sending the mails. “We are trying to track the IP address. We need to catch masterminds like Abdul Subhan Qureshi to know more about the organisation and who could be behind sending the mail,’’ the source said.