yet to be officially formed. Each district is administered by a district magistrate. The districts are further divided into sub-divisions, which are administered by sub-divisional magistrates; sub-divisions comprise tehsils which are administered by a tehsildar and community development blocks, each administered by a block development officer. Urban areas are categorised into three types of municipalities based on their population; municipal corporations, each administered by a municipal commissioner, municipal councils and, nagar panchayats (town councils), each of them administered by a chief executive officer. Rural areas comprise the three tier administration; district councils, block panchayats (block councils) and gram panchayats (village councils). According to the 2011 census, Haridwar, Dehradun, and Udham Singh Nagar are the most populous districts, each of them having a population of over one million. Culture Architecture and crafts Among the prominent local crafts is wood carving known as Likhai, which appears most frequently in the ornately decorated temples of Uttarakhand. Intricately carved designs of floral patterns, deities, and geometrical motifs also decorate the doors, windows, ceilings, and walls of village houses. Paintings and murals are used to decorate both houses and temples. Pahari painting is a form of painting that flourished in the region between the 17th and 19th century. Mola Ram started the Garhwal Branch of the Kangra school of painting. Guler State was known as the "cradle of Kangra paintings". Kumaoni art often is geometrical in nature, while Garhwali art is known for its closeness to nature. Other crafts of Uttarakhand include handcrafted gold jewellery, basketry from Garhwal, woollen shawls, scarves, and rugs. The latter are mainly produced by the Bhotiyas of northern Uttarakhand. Arts and literature Uttarakhand's diverse ethnicities have created a rich literary tradition in languages including Hindi, Garhwali, Kumaoni, Jaunsari, and Tharu. Many of its traditional tales originated in the form of lyrical ballads and chanted by itinerant singers and are now considered classics of Hindi literature. Abodh Bandhu Bahuguna, Badri Datt Pandey, Ganga Prasad Vimal; Mohan Upreti, Naima Khan Upreti, Prasoon Joshi, Shailesh Matiyani, Shekhar Joshi, Shivani, Taradutt Gairola, Tom Alter; Lalit Kala Akademi fellow – Ranbir Singh Bisht; Sangeet Natak Akademi Awardees – B. M. Shah, Narendra Singh Negi; Sahitya Akademi Awardees – Leeladhar Jagudi, Shivprasad Dabral Charan, Manglesh Dabral, Manohar Shyam Joshi, Ramesh Chandra Shah, Ruskin Bond and Viren Dangwal; Jnanpith Awardee and Sahitya Akademi fellow Sumitranandan Pant are some major literary, artistic and theatre personalities from the state.