Boarding life is the heart of NBIS and boarding staff play a pivotal role in the pastoral, social and emotional well being of their students. The boarding team is headed by the Principal who is supported by highly qualified and skilled teaching and residential staff, including the House masters and House mistresses, Assistant House masters and mistresses, residential house staff, House mothers and a range of support staff. "NBIRS, Anekal Town is a home away from home, which maintains traditional values in a family atmosphere."
There are Six boarding houses namely Seetha, Radha, Rama, Krishna, Prem, Sai kuteer. The Girls International House (GIH), the Boys International House (BIH) and the Junior Boys International House. Each child is under the supervision and care of a Boarding Housemaster or Housemistress responsible his or her specific age group. Each purpose-built boarding house provides modern amenities including attractive bedrooms accommodating two, three or four students, superb bath and shower facilities, comfortable common and recreational rooms, a quiet area and a Library.