The death toll in the Mazgaon building collapse on Saturday rose to 43 even as rescuers scoured the massive rubble looking for survivors and bodies.br The owner of a decoration firm who illegally carried out "faulty" renovation at his rented office-cum-warehouse on the ground floor of the building has been arrested in connection with the incident.br br "The death toll in the collapse has risen to 43 and 32 people are injured," added that more people were still believed to be trapped under the debris.br The injured have been admitted to state-run J.J. Hospital and Nair Hospital.