District Collector Ratnakar Rout on Monday wrote a letter to the Superintendent of Police and the district Collector of Thiruvalluvar to intervene in the alleged murder of one Kalpataru Swain of Gokhakhati village under Mahakalapada block and get the case investigated. Swain (24) was killed on March 10 in the Thiruvalluvar area by Babula Swain, Prabhat swain and some of his relatives after he demanded his five months’ pending salary and sought to return to his village. According to the deceased’s villagers, six months back fellow villager, Babula, who was supplying labourers to Chennai’s Gummidipoondi - based Sridurga Steels, lured Kalpataru to Chhenai and engaged him at the contract site on assurance of `10,000 per month. However, after working for several months, when Kalpataru failed to get his monthly salary, he started demanding his dues from Babuli, his brother Prabhat and others. Enraged, they together assaulted Kalpataru on March 9. Seriously injured, Kalpataru was admitted in a hospital where he died on March 10.