A mysterious e-mail by an outfit known as  'Indian Mujahideen' has claimed responsibility for Tuesday's blasts in Jaipur and the central security agencies and Rajasthan Police are now trying to work out the source of the mail which has warned about more such attacks in the country.

The email, which was sent on Wednesday night to various television channels, has given the frame number (129489) of the bicycle which was planted at Choti Chaupad near Kotwali in the Pink City.

The frame number of a bicycle recovered by the Rajasthan Police from the spot is same, informed sources said, adding the e-mail was written on Wednesday from a cyber cafe in Sahibabad in the outskirts of the capital.

The ID used was "guru_alhindi_jaipur@yahoo.co.uk", the sources said, noting that the account was created on Wednesday itself using the UK domain of the Yahoo.

The email said India should stop supporting the US in the international arena, "and if you do continue then get ready to face more attacks at other important tourist places".