Andrew's Airbase, Jan 24 (ANI): US President Barack Obama along with US First Lady Michelle Obama left for their three day landmark trip to India from Andrews Air Force Base on Saturday. Obama will arrive in India on Sunday for the second time during his tenure, to build on what he calls one of the defining relationships of the 21st century. He was invited by Prime Minister Narendra Modi and will be the first US president to attend Republic Day celebrations in New Delhi on January 26. Earlier in the day, US President Barack Obama and his wife Michelle's visit to Agra was cancelled. They were to visit the Taj Mahal and spend an hour before leaving for Washington DC.