In a tragic incident three poor patients undergoing dialysis died due to a power cut at the Indira Gandhi Government General Hospital and Post Graduate Institute in Puducherry on Thursday a senior official said. Two women aged 55 and 75 and a man unfortunately died when they were undergoing dialysis at the hospital due to power cut. The hospital provides free dialysis treatment to poor patients K.V. Raman Director in the Health Department told IANS over phone. According to Raman a committee has been formed to look into the issue on how the power supply was interrupted for seven minutes.