UML leader K.P Sharm Oli flew to New Delhi on Sunday for "regular medical check-up".
During his stay there, Oli is also scheduled to meet some Indian political leaders, but no meetings were set in advance, it is learnt.
Oli had returned from India two weeks earlier. While there, he had met newly elected Indian President Pranab Mukherjee, ruling Congress party chief Sonia Gandhi and few other senior Indian politicians. nepalnews.com