Tamil Nadu Police Friday said they found the movements of a bald man who disembarked from the train and ran away before the twin bomb blasts as unusual and would like to question him during investigation.
Speaking to reporters here, Inspector General of Police at the Crime Branch-Criminal Investigation Department (CB-CID) Maheshkumar Agarwal said: "We found the movements of a bald person getting down from the S3 coach and running away as unusual from the CCTV footage. His movements were unusual."
The two bombs were placed in S4 and S5 coaches.
Agarwal said the presence of the bald and stocky man will be important for the probe into the bomb blasts on the Bangalore-Guwahati train Thursday that killed one woman and injured 14 others.
Agarwal stressed that the police does not consider the man as a suspect in the case but sought his presence in the investigation to clarify his unusual movements.
He said the man got off the train at 7.08 a.m. The two bombs went off in succession at around 7.15 a.m.
According to Agarwal the man was not seen getting on the train at the Chennai Central station but was only seen getting down and running away.
The police officer said the investigating team is also checking the camera footage at all other stations between Bangalore and Chennai Central stations.
According to him, there is no evidence to suggest that the bombs could have been planted at the Chennai station.
He said the forensic science wing has recovered some pieces of cloth and metallic parts that indicate it to be a time bomb variety.
The train was scheduled to reach Chennai Central at 5.40 a.m. but was running late by 90 minutes and entered the station at 7.05 a.m.
Ruling out the connection of the arrested Sri Lankan Mohammed Zakir Hussain with the blasts, he said the investigation team is pursuing some leads in Bangalore.