Lok Sabha Speaker Shri Om Birla; Speaker, Uttarakhand Vidhan Sabha Shri Prem Chand Aggarwal; Chief Minister, Uttarakhand, Shri Trivendra Singh Rawat and Deputy Speaker, Uttarakhand Vidhan Sabha Shri Raghunath Singh Chauhan lighting the lamp at the Inaugural function of the 79th Conference of Presiding Officers of Legislative Bodies in India in Dehradun on 18 December 2019