Mumbai: Suspecting some terrorist organisation behind the Ghatkopar bomb blast on July 28 night, Maharashtra Minister of State for Home (Rural) Kripa Shankar Singh did not rule out the involvement of Lashkar-e-Toiba (LeT) or Students' Islamic Movement of India (SIMI).

"It is difficult to pin-point any organisation at this stage. However, role of LeT or SIMI could not be ruled out," Singh said.

The blast that occurred in the rear portion of the BEST bus had left three persons dead and 31 others injured.

Deputy Chief Minister Chhagan Bhujbal had earlier told reporters that similar pattern had emerged in this blast compared to explosions in the past, which were allegedly planned by the banned SIMI.

"It is difficult to say whether the organisation was behind tonight's (July 28) blast," Bhujbal had earlier told reporters.

The blast in Mumbai has baffled police force and state administration as Bhujbal had earlier claimed that the plan of militants had come to a naught with the arrest of some accused from Padgah village in nearby Thane district in a series of explosions in the last eight months.

PTI