Initially the Army had claimed that four of its men received minor injury immediately after Wednesday evening's blast under two of its vehicles at Chonhkham in Lohit district of Arunachal Pradesh.
Borsaikia, commander of a company of the 28th battalion of the outfit, was one of the most-wanted ULFA leaders.
One Hindi-speaking person was killed and 16 others injured, four of them seriously, when a bomb planted by suspected United Liberation Front of Asom militants went off at a daily market in eatern Assam's tea town of Doom Dooma in Tinsukia district at around 4.30 pm on Tuesday.
The hideout was a base for providing medical treatment to ULFA's injured cadres.
Eyewitnesses said the militants fired six to eight rounds killing the two on the spot.
Tinsukia District's Superintendent of Police Prasanta Bhuyan told PTI in Dibrugarh that hardcore ULFA militant Dhruba Kujur, who belonged to the its '28 battalion', had masterminded and carried out the attack.
Official sources said that the prime minister was also scheduled to review the Unified Command Structure in the state, which will henceforth be headed by the chief minister and not the chief secretary.
Paswan, who undertook a visit to the worst-hit areas of Upper Assam, said the state government has not started relief work in many camps. He suggested that relief work should be speeded up.
The spokesman said that all the trains scheduled to run on that section were regulated at different stations immediately after the blast. The blast blew about a three-meter portion of the track.
According to a source in the Army, the top leader of the ULFA's 28th battalion, which is most dreaded and highly active in eastern Assam districts, was handed over to the police in Tinsukia district on Saturday.
The killed teacher hails from Nagaon Tinali under Pengeri police station. He is survived by young wife and a five-year-old daugher.
Senior superintendent of police, Guwahati city, informed that a bomb planted by suspected United Liberation Front of Asom militants rocked Anthgaon area in the heart Guwahati at around 12.30 pm on Monday.
The offensive came as the Central government called off the truce with the outfit earlier in the day.
Six persons were killed and 49 injured and a gas pipeline of Assam Gas Company Limited was extensively damaged in separate incidents of violence as ultras of the United Liberation Front of Asom went on a killing spree in Upper Assam on Sunday.
The vehicle was carrying cash in new currency notes for wage payment to employees of a tea garden.
An indefinite curfew has been clamped in three upper Assam towns as violence against army and administration continued unabated, leaving at least six dead, 40 injured.
Tanti was one of the most-wanted ULFA militants and was involved in a large number of bomb explosion incidents in Tinsukia district as well as the infamous assassination of Hindi-speaking people in Dibrugarh district in January this year.
The doors for dialogue with the United Liberation Front of Asom were open, but it should not be mistaken for 'weakness', Prime Minister Manmohan Singh said on Tuesday.
'While they target Hindus from other parts of India, they never target Bengali-speaking Muslims from Bangladesh.'
Assam has been put on red alert as gun-toting United Liberation Front of Asom militants were on a rampage in three Upper Assam districts where they have mowed down 48 people since Friday, including 28 on Saturday.
Prime Minister Manmohan Singh on Friday condemned the United Liberation Front of Asom killings in Assam.
With the recovery of four more bodies today, the death toll mounted to 36 in Assam floods that affected about 10 lakh people in 13 districts and rendered majority of them homeless.
The 12-hour Assam bandh was called by the youth wing of former chief minister Prafulla Mahanta's new party to protest against the recent ethnic violence in Karbi Anglong district.
The mob was protesting against the death of suspected ULFA linkman Ajit Mahanta allegedly in army custody on Sunday.
A heavy downpour in the hills of Arunachal Pradesh and catchment areas of the Brahmaputra has led to flooding in large areas in Upper Assam.
Currently, the Brahmaputra at Guwahati, Nimatighat in Jorhat, Tezpur in Sonitpur, Goalpara and Dhubri towns, while the Barak at AP Ghat in Cachar and Badarpurghat in Karimganj are flowing above the danger mark.
At least 117 Electronic Voting Machines malfunctioned and were replaced during the first phase of assembly polls in 65 constituencies in Assam, where the two-phase election process started Monday.
According to sources the army was all set to conduct operation in the disturbed 'ULFA infested' districts of Tinsukia, Dibrugarh, Sibsagar and Jorhat.
Singh instructed officials to try their best to restore peace in the border state as early as possible.
The Bogibeel Bridge, which was a part of the Assam Accord and sanctioned in 1997-98, is likely to play a crucial role in defence movement along the India-China border in Arunachal Pradesh.
Assam has suffered huge losses in terms of lives, property, cropped land, dwellings and infrastructure in three waves of flood that have hit the state so far this year. Last week's deluge wreaked havoc in Kamrup and Goalpara claiming 67 lives and leaving behind a trail of destruction.
The militants fought a pitched gun-battle with CISF jawans in the camp, destroyed an empty crude oil tank and ransacked an office block before fleeing into a nearby jungle, a senior police officer said.
A 12-hour Assam bandh called on Friday by the BJP, to protest the introduction of a Constitutional Amendment Bill to facilitate swapping of land enclaves with Bangladesh, evoked mixed response.
They set afire a 5000KL petrol tank, blasted a gas pipeline, attacked a police post and a commando barrack and fired at a Bihari settlement, killing two persons.
The going has not been too smooth for the United Liberation Front of Asom, the violent separatist outfit that has, for decades, unleashed a reign of terror and mayhem in the north-eastern state.
