The concept of the diploma institute at Nilokheri as an engineering college was first introduced in year 2000. After many initial tries, college was supposed to open in 2010 but due to government and political policy, idea was rejected once again. The institute building was previously used by the students of Govt. Polytechnic Nilokheri was granted the status of engineering college in 2016 having named Government Engineering College, Nilokheri which was later changed to State Institute of Engineering & Technology, Nilokheri.[2] The institute was inaugurated by Manohar Lal Khattar, who was the Chief Minister of Haryana. The Guru BrahmaNand Ji Govt. Polytechnic Nilokheri (GBNGPN) formerly known as the Govt. Polytechnic Nilokheri (GPN)'s classes of Diploma Ist year were shifted out en bloc to mark the beginning of SIET Nilokheri at its campus in new building. The Guru BrahmaNand Ji Govt. Polytechnic Nilokheri (GBNGPN) is thus the mother institution of GEC Nilokheri.[3][4] The institution have best record in placements of 2021 and 2020 batch. Up to 70% of CSE branch students were placed in multinational corporations like TCS, NIIT, etc. Students of this institution are interested in open source development, competitive programming, data structure and algorithms, machine learning, artificial intelligence, etc

Vision of the Institution “To be recognized as a premier institution for technical education and research in the region.” Mission of the Institution M1: To provide a friendly environment for impactful teaching, learning with state-of-art technology. M2: To support institutional and industrial interface. M3: To impart entrepreneurial and managerial skills to the students. M4: To establish as emerging research centre in the region.

Admission in B.Tech first year is given to students on the basis of their ranks in Joint Entrance Examination-Main.Admission in second year though B.Tech Lateral Entry scheme is done on basis of B.E./B.Tech Lateral Engineering Entrance Test exam conducted by Haryana State Technical Education Society. 

Almost 35% of final year students in B. Tech CSE got placed. The highest package in this year's placement is about 11 lpa, the lowest is 2 lpa, average is 3-4 LPA. TCS, Infosys, goldsman etc were top recruiters.

As per our records, State Institute of Engineering and Technology, Nilokheri can offer scholarships for the session 2023-24 for various programs. However, you should enquire about scholarships from the college officials.