Nairobi: Prime Minister Narendra Modi on Monday visited the UN offices in Nairobi and planted the sapling of a tree. “A brief multilateral stop on a bilateral agenda! PM @narendramodi tours the UN Offices in Nairobi, plants a sapling,” External Affairs Ministry spokesperson Vikas Swarup tweeted. Nairobi is one of the four cities in the world where the UN has its offices, the others being New York, Geneva and Vienna. The offices in Nairobi are the only ones in a developing country. The headquarters of the UN Environment Programme (UNEP) is among these offices. India and Kenya on Monday signed seven agreements following bilateral discussions headed by Modi and Kenyan President Uhuru Kenyatta. The Prime Minister also addressed the students of the University of Nairobi. Modi arrived in Kenya from Tanzania on Sunday on the final leg of his four-nation African tour. He will leave for New Delhi later on Monday.