Bhubaneswar mayor Sulochana Das said the civic administration is ready for cremation of the unclaimed bodies as per rules.
The charge sheet has been filed in the court of the special judicial magistrate in Bhubaneswar in an ongoing investigation into a case related the train mishap.
The accident took place on June 2 when the Coromandel Express crashed into a stationary freight train at Bahanaga Bazar station in Balasore district and collided with the Yeshwantpur-Howrah Express.
Dr Ashutosh Biswas, Director, AIIMS, Bhubaneswar said that the process of handing over the bodies to claimants after matching DNA samples is underway.
The Union Minister said that the Commissioner of Railway Safety under the Ministry of Civil Aviation has completed its inquiry into the Balasore train accident, which claimed 295 lives.
Senior section engineer Arun Kumar Mahanta, section engineer Mohammad Amir Khan and technician Pappu Kumar were arrested by the agency under sections 304 and 201 of the Indian Penal Code.
Inquiry report cites faulty signalling and human error as reasons for June 2 triple-train accident.
Of the 13 bodies, four have been sent to Bihar, eight to West Bengal and one to Jharkhand.
As many as 35 persons are camping at the guest house while 15 others have left for home due to a delay in the arrival of DNA reports.
Meanwhile, 81 bodies remain unidentified at AIIMS Bhubaneswar.
Passengers who book tickets at railway counters and those travelling in general coaches do not have any insurance coverage.
Terming the accident as an "act of sabotage," the signatories flagged 'efforts to undermine' the nation's security and progress.
With enough evidence to show that some kind of tampering was done with the interlocking system, the job now is to make it "tamper-proof", senior officials said.
Could this technology have failed to prevent the disaster, or was it manipulated? Equally, is it possible to manipulate the system manually?
A teacher couple that lived nearby admitted passengers to the local high school and even turned the educational institution into a temporary morgue when the body count grew.
Introspection must begin within Indian Railways to address some serious questions concerning safety systems
What has come as a problem is that some bodies are being claimed by multiple families. Therefore, DNA sampling is the only scientific process left for handling over the bodies.
The grand old party also accused the government of doing headline management and saving the minister responsible for the train accident.
The Chennai-bound train was involved in a tragic train crash last Friday at Odisha's Balasore.
There were initially 123 bodies in All India Institute of Medical Sciences, Bhubaneswar, and of which, 71 were handed over to families.