Vertical extension of school administrative building from level 12.6 mtr. to level 30.6 mtr. for laboratory side only including internal w/s, s/i internal e.i lift, fire fighting system, fire alarm and pa system cctv and networking system ac system and solar photo voltaic system for iiab at garkhatnga ranchi during 2022-23 sh: site survey plan work of icar, indian institute of agriculture biotechnology block b area 54.91 acre and block d area 17.59 acre total area 72.50 acres at garkhatanga ranchi