from . with monsoon having cooler weather. Monsoon starts in the beginning of June, heaviest rainfall during Aati month, which spans from mid-july to mid-august. Occasional rain persists till deepawali and marnemi festivals in October-november. Winter lasts from December to early February. Summer from mid-February till May. With occasional tropical rain during April and may. Culture The Yakshagana is a night-long dance and drama performance practised in Tulu Nadu with great fanfare. Pilivesha is a unique form of folk dance in the region fascinating the young and the old alike, which is performed during Marnemi (as Dussehra is called in Tulu) and Krishna Janmashtami. Karadi Vesha (Bear Dance) is one more popular dance performed during Dasara in Tulu Nadu. Daivaradhane (Spirit worship), which is usually done at night is practised here. Kambala (Buffalo race) is conducted in water filled paddy fields. The Bhuta Kola is similar to Theyyam in Kerala. Korikatta (cockfight) is another favourite sport for the people. Nagaradhane (Snake worship) is practised in the Tulu Nadu according to the popular belief of the Naga Devatha to go underground and guard the species on the top. Udupi cuisine is popular across South India, mostly due to Udupi restaurants, which are primarily vegetarian. Apart from Southern India, there are famous Udupi Hotels in Mumbai and New Delhi too. Economy Historically, Tulu Nadu was primarily dependent on agriculture and fishing. The main crops grown were rice, Bengal gram, horse gram, vegetables and fruits. Plantation crops like coconut, areca nut, cocoa, cashew nut, and pepper are also grown. In the early 20th century, the Mangalore tile industry, cashew nut processing, and the banking industry grew substantially. Tulu Nadu is called "the cradle of Indian banking". Five major banks of India (Syndicate Bank, Canara Bank, Corporation Bank, Vijaya Bank and Karnataka Bank) have their origins here. In the early part of the 21st century the area has been transforming itself into a hub of the information technology and medical services industries. There has been large-scale decline in agriculture and related industries due to the non-availability of labour and preference for white-collar jobs. Agricultural land is being converted to commercial and real estate properties, and environmental pollution is increasing drastically due to large-scale deforestation and increase in automobile use. A public sector petroleum refinery (MRPL) was established in the 1990s. Some chemical plants (e.g., fertilizers and pesticides) have been established. This region contributes the