BANKE, NOV 15 - Three people of a family including Geeta Chaudhary of Titihiriya -5 in Banke district have consumed poison.   Geeta poisoned her two daughters and one son and consumed poison herself after a debate with husband, said police.   Geeta's condition is critical from taking poison and her eight year old daughter Elisha, six year old daughter Sneha and four-year old son Rahul Chaudhary's condition is normal.   They are all undergoing treatment at the Teaching Hospital in Kohalpur, said Area Police Office, Kohalpur. RSS