Nepal, June 08 (ANI): Nepal's Federal Alliance, a coalition of 28 major political parties, on Tuesday launched an almost one-month-long hunger strike to exert pressure on the government to address their demands regarding provisions for proportional representation and rewriting of the Constitution. The Federal Alliance, including constituents of United Democratic Madhesi Front (UDMF), launched the hunger strike in the capital Kathmandu. Coordinator of the alliance, Upendra Yadav, said this is a fight for basic rights for all oppressed classes. The unrest, which has caused fuel shortages in Kathmandu as the Madhesis blocked imports of essential goods from India, is a threat to Prime Minister K.P. Oli, who survived an attempt by the opposition to topple his fractious coalition early this month. The Constitution, put in place last September, was the final part of a peace deal between the government and Maoist rebels which ended a decade-long rebellion in 2006. But many Madhesis want their region, home to half of the country's 28 million people, to become an autonomous state within Nepal and not broken up as envisaged in the new constitution.