Construction Of New Air-Conditioned Engine Assembly Shop With Annex Building For Offices And Sub-Station At Engine Factory Avadi. Sub-Head: Pre Engineering Building (Peb) Including Electrical Work, Hvac, Sanitary & Plumbing, Water Supply, Sewage, Fire Fighting And Other Allied Civil Works Etc. / Construction Of New Air-Conditioned Engine Assembly Workshop With Attached Building For Offices And Sub-Station In The Engine Factory At Avadi. Sub-Head: Pre-Engineering Building (Peb) Which Includes Electrical Works, Hvac, Sanitation & Plumbing, Water Supply, Sewage, Fire Fighting And Other Related Civil Works Etc.