Calcutta, Dec. 4 :    Calcutta, Dec. 4:  Chief minister Buddhadeb Bhattacharjee told Shyamal and Jonaki Ghosh, parents of Kaustuv, who was killed by dacoits at Uttar Purbachal on November 19, that 'all culprits' had been arrested. 'I am very sorry that I cannot bring your son back and I have no words to console you,' Bhattacharjee told Kaustuv's parents when they met him in his office at Writers' Buildings on Monday morning. 'But I assure you that the culprits have been arrested.' To this, Kaustuv's father said: 'Please take appropriate action so that no parents lose their son in this manner.' Bhattacharjee promised 'appropriate action' against Kaustuv's killers. A gang of about 20 dacoits had raided Ghosh's house, shot the 19-year-old student of computer engineering, beat up his parents, and looted cash and ornaments. Jonaki Ghosh started to recount the night of horror but was stopped by Bhattacharjee, who told her he knew all about the incident. 'Do not hesitate to tell me if you need anything,'' Bhattacharjee told her. Later, speaking to newspersons, the chief minister said he had requested Shyamal and Jonaki Ghosh to call on him. 'When I had visited their house a day after the attack, Kaustuv's father was unwell,' said Bhattacharjee. When asked whether the government would announce any compensation for the family, Bhattacharjee said the family had not 'asked for anything', but he had assured them of 'every assistance'. The Kasba killing, in the chief minister's constituency, had caused near-panic on the southern fringes of the city, forcing Bhattacharjee to drive his police force into full action mode. While commending the police for rounding up the chief accused in the Kasba dacoity, Bhattacharjee has asked them to 'take special measures in tackling dacoits' and also urged his cadre and the local residents to be 'more alert'.