Two persons have been detained from Mumbai for questioning by the Maharashtra ATS in connection with the e-mail purportedly sent by terror outfit Indian Mujahideen, owning up the attacks outside Jama Masjid in Delhi on Sunday. A senior police official informed that two persons have been picked up for questioning from the city although he refused to divulge further details. According to the police, the e-mail was sent using a tata mobile phone connection. The sim card as well as the phone was purchased using a fake address and name, from Mumbai. A team of Delhi police has arrived in the city to carry out investigations. Both the Mumbai and Delhi police teams are working in co-ordination. Soon after the firing near Jama Masjid on Sunday, in which two Taiwanese nationals were injured, an e-mail was sent to various media houses, threatening to carry out attacks during the upcoming Commonwealth Games.