Saikia, kidnapped on April 21, was released near the border in Longwa village of Mon district in Nagaland after 31 days.
Sarma said the Assam government will pressurise the oil companies more to invest further for the progress of the state, but that can be done only with a conducive atmosphere.
The Assam CM appealed to the chief of the banned outfit Paresh Barua to come to the negotiation table to make the ceasefire a permanent step.
Appealing to Paresh Baruah and other ULFA members to join the peace process, Sarma said killings and abductions will not solve problems.
Mahanty said that the banned outfit was planning to carry out some high profile kidnapping, but the plan has now been foiled.
The search operation for the missing employee of the crude oil and gas major is on and the force is getting regular updates from security agencies, police said.
DGP Bhaskar Jyoti Mahanta said the police would not spare anyone found involved in the case.
The United Liberation Front of Assam had claimed that all the three employees were handed over to the villagers following the outfit’s concerns about their safety amid the gunfight.
In a statement, the ULFA said the three ONGC employees were handed over to the villagers of Totokchingnyu as the outfit was concerned about their safety amidst the gunfight.
The Assam police earlier arrested 14 people, including ULFA sympathizers, in connection with the incident.
Junior technicians Mohini Mohan Gogoi, Ritul Saikia and junior engineering assistant Alakesh Saikia were abducted from an ONGC rig site in the Lakwa field of Assam’s Sivasagar district on Wedne
The PSU, in a statement, said that the three employees have been abducted by unknown armed miscreants in the early hours of Wednesday from a rig site of ONGC in Lakwa field of Sivasagar.
Fathimath, paralysed since childhood, developed breathing difficulties on Sunday around 2 pm; she died by the time she was taken to hospital in a private vehicle at 5 pm.
The Assam Rifles found Ram Kumar at Longwa village in the Mon district of Nagaland on Monday.
The police said there was no trace of the other abducted employee, Ram Kumar (35), who hails from Bihar.