Kathmandu, November 12 Major political parties have pledged to expedite infrastructure development in the country in their election manifestos. They have prioritised roads, energy projects and tourism. Among other things, construction of railways is an agenda of all parties. The Nepali Congress has promised to double agricultural productivity by introducing irrigation projects. Likewise, the party has also set the target of generating 5, 000 megawatts electricity within the next five years. The NC has also promised to link all parts of Tarai through railways. Its election manifesto states that a master plan will be prepared to construct railway linking the country with the northern border via Kathmandu Valley. The party also promises to modernise all cities and expedite infrastructure development in the Tarai. The common manifesto of the CPN-UML and CPN-Maoist Centre also priorities road connectivity. Their manifesto sates that the Kathmandu-Tarai fast track will be constructed within four years, East-West Highway will be upgraded into six lanes within six years, Hulaki Highway will be upgraded into four lanes and Mid-hill Highway will be completed within five years. The common manifesto also promises construction of railways. Construction of east-west high-speed railway parallel to east-west highway and mono or metro rail service in the main cities are some of the promises made by the left alliance. Rastriya Prajatantra Party has also promised in its election manifesto that it would expedite construction of fast track, Hetauda-Kathmandu tunnel way and postal highway. Likewise, the party also promises to construct railways and end load-shedding by developing the hydro-power projects.