Delhi Chief Minister Arvind Kejriwal on Monday said the Bharatiya Janata Party (BJP) has failed completely in the national capital with the law and order situation further deteriorating."Law and order in the capital of India is deteriorating by the day. BJP has completely failed," Kejriwal tweeted.The responsibility for the police and law and order of the national capital lies with the Central government.Kejriwal's remarks come after two suicides occurred here on Sunday.In one incident, a 17-year-old girl allegedly hung herself inside a police station in West Delhi and an air hostess committed suicide at her home.