The police are still trying to find a lead in the recent incident wherein a country bomb exploded near an Ayyappa Thavalam at Thrikkakara.
With no valid inputs from the probe, they are unable to zero in on any group or person so far.
The only clue is that seven Sabarimala pilgrims were travelling in a white Tavera car with fake registration number near the spot when the incident occurred.
“The investigation is on at different parts of the state and various people are being interrogated. All the white Tavera cars operating as taxis will be checked but there are possibilities of changing the colour of the car,” the police said.
They will seek the assistance of ballistic experts to identify the explosives and study similar cases.
“There are some case where containers with explosives were used. Even the cyber cell is trying to trace the mobile signal,” police official said.
On January 8, a medium range country bomb exploded near Ayyappa Thavalam.
The explosive powder was filled inside a steel mug with a lid and wick attached to it.
A witness said that he saw flames coming from the steel mug after which it exploded and that nobody was around.