Shimla: A Congress delegation headed by Himachal Pradesh party president Kaul Singh Thakur, Vice President Gangu Ram Musafir and eleven Congress MLAs with party members, met Governor Prabha Rau in Raj Bhawan and submitted a memorandum seeking dismissal of Dhumal government and recommending a CBI inquiry into the phone tapping issue revealed in the two audio CDs and the video CD allegedly showing illegal cash transactions.