New Delhi, Aug 3 (ANI): Indian Prime Minister Narendra Modi left New Delhi for his two-day visit to Nepal on Sunday to take forward his initiative of economically integrating South Asia. Modi's visit to Nepal will be the first bilateral engagement by an Indian prime minister in 17 years. He will address business leaders and may also announce economic aid for the neighbouring country. India is also set to offer Nepal a landmark pact to help develop its huge hydro-electric power potential as the South Asian giant takes another step to re-assert influence among smaller neighbours where China has been forging closer ties.