New Delhi, Jan 20 (ANI): Delhi Chief Minister Arvind Kejriwal on Monday is all set to sit on dharna outside the Home Ministry office in protest of no action taken against Delhi cops for their negligence in drug and sex rackets in the national capital. With the dharna on place, commuters will have a tough time as the four metro stations, that is, Patel Chowk, Central Secretariat, Udyog Bhavan and Race Course will remain closed from 9 am to 1 pm. Also, the Delhi Police has imposed prohibitory orders in and around Delhi to maintain law and order.