Government Polytechnic, Sitamarhi have central library for students where books of different authors and different subjects are kept. We also have excellent reading rooms where student can study those books noiseless. At Govt. Polytechnic, Sitamarhi we issue library identity card for student and maintains records. Students at Govt. Polytechnic, Sitamarhi can show their identity card to library in charge and collect books from the library. The library in charge will issue book any maintains the records.