The Videocon group would set up a BPO unit at Salt Lake, Kolkata, employing 25,000 people, its chairman Venugopal Dhoot said on Thursday.He said the group has sought 100 acres at Kolkatas new township of Rajarhat for putting up a colour television component manufacturing unit.The response of the state government is very positive, he said.Videocon had earlier taken over the manufacturing unit of Philips at Salt Lake where it is now producing kitchenappliances.The group had last year bought the lamp manufacturing unit of Philips at Taratala in south Kolkata.