KATHMANDU: President Bidya Devi Bhandari on Thursday told Prime Minister Pushpa Kamal Dahal to take all political parties into confidence while implementing the Constitution. In a regular meeting with Dahal at the Sheetal Niwas this evening, the Head of the State told him so after discussions on various contemporary issues. President's person secretary Bheshraj Adhikari said the meeting had lasted for around an hour.