<p>Kolkata: An explosion blew off the walls of a flat in Titagarh near Kolkata on Monday morning, police said.</p>.<p>The incident happened in the congested ward 4 of Titagrah Municipality in North 24 Parganas district, triggering panic in the area, they said.</p>.<p>Initial probe revealed that the flat was taken on rent by local TMC councillor Arman Mondal, they added.</p>.Kolkata: Police officer held for 'involvement' in over Rs 2-crore robbery in moving taxi.<p>"There was nobody inside the flat when the blast took place. Though nobody was injured, the walls of the flat were blown off as a result of the blast. It seems that the blast happened due to some explosives kept inside the flat. We have started an investigation," a police officer said.</p>.<p>A shanty beside the apartment was damaged as concrete debris fell on it following the explosion, he said. </p>
<p>Kolkata: An explosion blew off the walls of a flat in Titagarh near Kolkata on Monday morning, police said.</p>.<p>The incident happened in the congested ward 4 of Titagrah Municipality in North 24 Parganas district, triggering panic in the area, they said.</p>.<p>Initial probe revealed that the flat was taken on rent by local TMC councillor Arman Mondal, they added.</p>.Kolkata: Police officer held for 'involvement' in over Rs 2-crore robbery in moving taxi.<p>"There was nobody inside the flat when the blast took place. Though nobody was injured, the walls of the flat were blown off as a result of the blast. It seems that the blast happened due to some explosives kept inside the flat. We have started an investigation," a police officer said.</p>.<p>A shanty beside the apartment was damaged as concrete debris fell on it following the explosion, he said. </p>