Two Taiwanese men were wounded in the attack outside the Jama Masjid, a 17th century mosque which is one of the capital's most famous tourist attractions.

The Indian Mujahideen, which has claimed responsibility for a number of attacks across the country in recent years, said it was behind the shooting and threatened to target the upcoming Oct. 3-14 Commonwealth Games.

In the e-mail the IM stated that the firing at the Jama Masjid was a "tribute" to their colleagues Atif Amin and Mohammed Sajid, who were killed in a police encounter a the famous Batla House shoot-out in Delhi.

Police sources in the city said that the pair would be questioned about the e-mail, which was sent from a mobile phone to a number of media outlets after the shooting on Sunday.

The SIM card and phone were bought using a false name and address, an unnamed senior police official was quoted as saying.

In another development, Mumbai's Joint Commissioner of Police (Law and Order) Himanshu Roy on Tuesday met the ailing Shiv Sena chief, Bal Thackeray and his son Uddhav, at his residence.

The meeting is significant since it took place ahead of Sept. 24, the day when Allahabad High Court is expected to announce its verdict on communally-sensitive Babri Masjid case.

According to sources, Roy held discussion with Thackerays on the issue of the Ayodhya and likely court verdict. Roy knocked on Thackeray's door after Uddhav, issued an statement on Monday saying that the Sena will decide its strategy on the Ayodhya issue after the court verdict is delivered.