After India's independence, the United Provinces were renamed "Uttar Pradesh" ("northern province"), preserving UP as the acronym, with the change coming into effect on 24 January 1950. The state has provided nine of India's prime ministers, including current Prime Minister Narendra Modi who is MP from Varanasi, which is more than any other state and is the source of the largest number of seats in the Lok Sabha. Despite its political influence since ancient times, its poor record in economic development and administration, poor governance, organised crime and corruption have kept it among India's backward states. The state has been affected by repeated episodes of caste and communal violence. In Ayodhya in December 1992 the disputed Babri Mosque was demolished by radical Hindu activists, leading to widespread violence across India. In 2000, northern districts of the state were separated to form the state of Uttarakhand.