KATHMANDU: Defence Minister Bidhya Bhandari is leaving for Delhi on Sunday for a four-day unofficial visit. According to a source at the Ministry of Defence, Minister Bhandari is going to Delhi for her medical check up. Bhandari had underwent a hip-joint operation four weeks ago at the Apollo Hospital in Delhi where doctors had suggested her to take complete rest. She is going back to follow-up on her condition. The source added that Bhandari would meet some Indian leaders though it was her unofficial visit.