Bihar Chief Minister Nitish Kumar arrived in Kathmandu on Wednesday afternoon to take part in the 13th general convention of the Nepali Congress.The grand old party of Nepal will hold its third general assembly from Thursday, which will also choose its new leadership.Leaders from various other political parties from other countries, including India, China, Bangladesh, will attend the convention of Nepal's oldest democratic party.Nitish Kumar will participate in the general convention on Thursday. He is also scheduled to address the NC's programme.Nitish Kumar was welcomed by leaders of the NC's foreign department and Indian Ambassador to Nepal Ranjit Rae upon his arrival at the Tribhuvan International Airport here.Nitish Kumar was scheduled to meet Nepal Prime Minister Khadga Prasad Sharma Oli on Wednesday as well as President Bidhya Devi Bhandari during his stay in Kathmandu.Sources said the chief minister will also meet Madhesi leaders in a five-star hotel at Dwarika.