This year's Buddha Purnima on Monday might mark a new milestone in India-Nepal relationship as Prime Minister Narendra Modi will travel to Lumbini in Nepal, the birthplace of Lord Buddha, for a day-long visit to participate in several events, including a bilateral with his Nepal counterpart Sher Bahadur Deuba and also attend a ceremony to lay the foundation stone for a centre for Buddhist culture and heritage. This will be PM Modi fifth visit to Nepal since 2014, and first by any Indian Prime Minister to Lumbini.