A lone firefighter tries to douse flames in storage tanks at a petroleum container depot of state-run Indian Oil Corp on August 11, 1998 in Thekeraguri town of northeastern state of Assam. Seven tanks were gutted in a fire after a missile attack by separatist guerrillas of the United Liberation Front of Assam (ULFA). Image Credit: Reuters // Move over Al-Qaeda, the Lashkar is Here...

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A lone firefighter tries to douse flames in storage tanks at a petroleum container depot of state-run Indian Oil Corp on August 11, 1998 in Thekeraguri town of northeastern state of Assam. Seven tanks were gutted in a fire after a missile attack by separatist guerrillas of the United Liberation Front of Assam (ULFA). Image Credit: Reuters

The ULFA also works closely with other militant outfits in the northeast including the NSCN (Nationalist Socialist Council of Nagaland and the KIA in Myanmar. Recently, officials in Dhaka had confirmed a meeting between deposed Pak President Pervez Musharraf and ULFA's Anup Chetia during the former's visit to Bangladesh in 2002.

The organisation, which claimed responsibility for bombings of economic targets like crude oil pipelines, freight trains and government buildings during the past decade, was known to be involved in several murders too. Here is a list of some of their more recent activities:

In May 1990, the ULFA killed Surendra Paul, brother of UK-based businessman Lord Swraj Paul, an attack that in many ways precipitated the launch of "Operation Bajrang". A year later, a Russian engineer was abducted and killed. In 1997, social activist Sanjay Ghose met the same fate. During that period, ULFA also made attempts on the then CM Prafulla Kumar Mahanta.

In 1997, the administration dug up a mass grave at an ULFA camp in Lakhipathar that proved executions by the banned organisation. In 2003, the ULFA was accused of massacring migrant labourers from Bihar while a year later they triggered a blast on Independence Day that left 15 people dead. The attacks on migrants resumed in January 2007 when the ULFA killed more than 60 Bihari labourers.