Tender For construction of prefabricated/semi permanent structure including installation of roof top solar plant (rts) work, internal water supply, sanitary installations, horticulture & land scaping work including electrical installations for sib border intelligence at yumthang, north sikkim.subwork/packages:construction of prefabricated/semi permanent structure including installtion of roof top solat plant (rts) work, internal water supply, sanitary installations, horticulture & land scaping work including electrical installations for sib intelligence at yumthang, north sikkim.