The central library is an integral part of any educational institution and SIET is no exception. It has got a huge collection of books for the students and for all the subjects that are taught here.The approximate numbers of books are about twenty one thousand and above which is definitely not a less number. A student can issue two books at a time and can keep them for a fortnight.In any case of late submission of the issued books a nominal fine of Rs. 2 are taken per book per counted day. Those books can be again reissued on the returning date. The library contains the books of all the eminent writers and the most appropriate books regarding the courses offered here. Students never face any sort of problems in terms of issue of books. The library staffs are equally amicable with utmost friendly jesture towards the students