KATHMANDU: The world community has assured it will extend support to Nepal for rescue, relief and reconstruction after the massive earthquake that hit the country today. India, China, US, the UK, Japan and other countries led by the United Nations have assured their support to Nepali officials India, China, US, the UK, Japan and other countries led by the United Nations have assured their support to Nepali officials. Indian Prime Minister Narendra Modi talked to Prime Minister Sushil Koirala and assured all kinds of help in such a critical moment. 'I spoke to PM Sushil Koirala, who is in transit in Bangkok on his way to Kathmandu and assured all support and assistance during this hard time,' Modi tweeted. Earlier, Modi had talked to President Ram Baran Yadav and assured all kinds of help. Acting Prime Minister Bam Dev Gautam separately talked to Indian PM Modi for support, according to Minendra Rijal, Minister for Information and Communications. PM Koirala, in a message from Bangkok, termed the quake a national tragedy and directed Acting PM Gautam to carry out rescue and relief works on war footing, according to a statement issued by the Prime Minister's Secretariat. Minister Rijal said PM Koirala was returning home late today or tomorrow- contingent upon the flight schedule - after cutting short his visit to Thailand and Indonesia. Koirala, who arrived in Bangkok from Indonesia today, was supposed to undergo health check up in Thailand before returning home on April 28. 'If flights could land in Kathmandu today, he would have returned home today itself,' Rijal told THT. 'He will return tomorrow.' Chinese Ambassador to Nepal Wu Chuntai called on Acting Prime Minister Gautam and assured Beijing's readiness to extend any help that Nepal needed, officials said. Acting Prime Minister Gautam presided over an emergency meeting of the Cabinet in the absence of PM Koirala. The meeting called for international help for rescue and relief efforts and decided to exempt visa fees and customs for foreign rescuers and the equipments they bring for their works. The government also requested all national and international NGOs, political parties, civil societies and professional bodies to extend support from where they are to expedite rescue work. Immediately after the Cabinet decision, officiating Foreign Secretary Prakash Subedi wrote to Government of India seeking civilian, military and engineering help to carry out rescue, relief and reconstruction endeavors. Talking to THT, UN Resident Coordinator Jamie McGoldrick said the UN was ready to extend support to deal with such critical a situation. Chief of Army Staff General Gaurav SJB Rana today cancelled his weeklong visit to Pakistan which was supposed to start today. The Nepali Army has been asked to coordinate with all foreign military and civilian rescue teams to smoothly carry out their works in disaster-hit zones. Minister Rijal said all ports of entry in Nepal will be open round-the-clock to facilitate international rescue operators to carry out their works.