1-Comprehensive Maintenance of lifts substation capacity 1000 KVA 2 nos 625 KVA DG Set pumpset Fire fighting system E and M equipment of 1 MLD sewage treatment plant for four blocks of income tac building type-II - 1No Type -III-2Nos and Type-IV at Central Revenue quarters Anna Nagar Chennai-40 SH-Comprehensive Maintenance of 16 Nos passenger lifts and 4 Nos income tax towers Kondrai Kaanchi Kaandhal Vaagai 2- Comprehensive Maintenace of 25 Nos passenger lifts and 5 Nos goods lifts for Customs towers Anichem Shenbagam akhil vengai Thamarai