Guwahati, Nov 19: In continued backlash to the attack on Assamese train passengers, at least 26 Biharis, including a minor girl, were killed in Assam as the Army was today deployed across the state and curfew imposed in worst-hit Tinsukia district and Duliajan town. Banned insurgents' outfit Ulfa, which asked Biharis to leave Assam over assault on Assamese railway passengers in Bihar, gunned down four Biharis and struck in Duliajan late this evening.

Indefinite curfew was imposed on worst-hit Tinsukia district and night curfew in Duliajan town.

Official sources said one person was killed in police firing in the Hindi-speaking dominated commercial town of Tinsukia after a mob attacked a school and the vehicle of an additional deputy commissioner. Three bodies were recovered from the town's Sripuria area, while another died of his injuries sustained earlier in an attack, prompting the authorities to clamp indefinite curfew in Tinsukia district, the sources said.

The sources said that Ulfa militants shot dead four Biharis and injured seven in new Bongaigaon in the evening. And struck at Nagajan in Duliajan town of Dibrugarh district injuring two persons, official sources said.

A body was also found from the town, they said, with several houses at Nandankanan Tea Estate and Chirapatty area near Lenkai Tea Estate torched leading to imposition of the night curfew. The police opened fire late this evening in Duliajan town to disperse anti-socials, the sources said.

Prohibitory orders were clamped in Guwahati as a precautionary measure, they said. The Director General of Police P B Sumant and senior officials have rushed to Tinsukia and Dibrugarh.

Meanwhile, governors of Assam and Bihar Lt Gen (Retd) Ajai Singh and M Rama Jois made a joint appeal tonight to the people of both states to maintain peace.

The governors appealed to the people not to act in anger and for the sake of small benefit cause immense damage to national unity. They said, "We are greatly pained and perturbed by the recent suicidal quarrel between Bihari and Assamese youths resulting in mutual killings and destruction of property".

The governors said fundamental right to equal opportunity was conferred on all citizens under article 18 in the matter of employment under the state and "we are bound by one constitution, we have one national flag to hoist and protect, we have one national anthem and a national song."

They said it was the duty of each not to damage national unity and brotherhood at any cost.

Bureau Report