What is the fine-grained topic of the following text: Kohima, September 14: A delegation of Naga Students’ Federation (NSF) was in Shillong on Thursday on a feel good mission against the backdrop of Khasi students opposing construction of a patient guest house at Northeast Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS). Only return the topic.
Naga Students’ Federation's visit to Shillong amidst Khasi students' opposition to a patient guest house construction at NEIGRIHMS.