Kathmandu, Oct 10: Nepal Prime Minister Sushil Koirala resigned on Saturday ahead of the election for the post on Sunday. He tendered his resignation to President Ram Baran Yadav on Saturday, his office said. Koirala, president of the largest party, Nepali Congress, was elected in  February 2014. Under his leadership, Nepal successfully promulgated a new constitution. (Read: China successfully launches satellite made by students) Also Read - Five student leaders arrested for torching govt vehicle in Nepal

The party decided to again field Koirala for the post and will register his candidacy on Saturday itself.  Chairman of the CPN-UML, K.P. Oli, has already registered his candidacy. Once Koirala also does so, there will be a straight fight for the post. Also Read - Nepal marks 104th anniversary of democratic leader Ganesh Man Singh

The agitating Madhesi Front claims that the Constitution does not guarantee enough rights and representation to the Madhesi and Tharu communities residing in southern Nepal.Madhesis are Indian-origin inhabitants of the Terai region bordering India who are opposed to splitting Nepal into seven provinces. Also Read - Nepali Congress protests death of party cadre in clash with NCP

They are against splitting Nepal into seven provinces. The continued blockade of border trade points with India has halted the supply of essential goods from India.At least 40 people have died in over a month of clashes between police and protesters from the Madhesi and Tharu communities and ethnic minorities.