COIMBATORE: Tamil Nadu forest department officials on Thursday arrested two farm workers on charges of poisoning a tiger and a tigress which were found dead at Pothamadai in the Pollachi Forest Range on April 8.The officials said the workers took revenge on the death of a calf and poisoned the big cats. Search is on for two more farm workers.P Rasu, 36 and C Karuppusamy, 56, hailing from Sethumadai village near Pollachi, have been remanded in judicial custody.On April 8, a wild boar and a tiger and a tigress were found dead near Pothamadai beat of Pollachi range. The officials suspected that some people might have poisoned the three animals.“A special team was formed to probe the deaths of the two big cats and the wild boar. Rasu and Karuppasamy said that they had poached a wild boar and laced pesticide in the flesh and left them in the same place leading to the deaths of the big cats,” said Pollachi Forest Range officer A Kasilingam.The duo told the officials that one of their calves was also killed by a big cat in December 2019.“We have seized snares from the duo,” said Kasilingam.He said that samples taken from the two big cats and the wild boar were sent to laboratories for analysis.