The city police on Thursday arrested four more persons in connection with the Vivekananda flyover collapse that had claimed 26 lives on March 31, 2016, taking the total number of arrests made in the case to 16.
The four are from three different agencies engaged in the construction of the flyover.
“We have arrested Partho Pratim Bhakt (56), Mansa Ram Mondal (49), Pradeep Kumar Nath (66) and Tapan Kumar Dhar (56) on Thursday after interrogating them for a few hours. They will be produced in court tomorrow. In all, 16 people have been arrested so far in connection with the case,” said Joint Commissioner of Police (Crime) Vishal Garg.
A source in the police said all four had been called for interrogation at Lalbazar, the police headquarters, and were later arrested.
Bhakt, a resident of Salt Lake, is the director of Equtep Engineers and Associate Pvt Ltd that was hired to design the flyover. Mondal is the owner of M/S Anindita Enterprises that was hired to look after other construction details of the massive structure, and hails from Sankrail in Howrah. Nath, a local of the Lake area in South Kolkata, was the technical advisor, representing Anindita Enterprises. Dhar is the deputy general manager of a quality control agency named Indian Registrar of Shipping.
They have been held under sections 304 (Culpable homicide, not amounting to murder), 308 (attempt to commit culpable homicide) and 34 (Common intention) of the IPC.
Hyderabad-based IVRCL was mainly handling the construction of the flyover that crumbled in the busy Girish Park area.
The first chargesheet, filed on June 28, named 10 IVRCL employees, including four engineers and six other officials, and mentioned that very poor quality raw materials were used.
A report by the IIT-Kharagpur expert committee in August revealed that the design was faulty, inferior-quality raw materials were used and the project was wrongly executed by the Kolkata Metropolitan Development Authority.
The flyover was initially designed by Consulting Engineering Service (CES), but the KMDA rejected it, and IVRCL later won the bid in 2007.