Perambur (RM3) & Pananthope Colony (RM4), Ayanavaram Colony (RM7), New Joint Office (RM6) & EWS /PER (RM8) - Maintenance of all buildings and roads in Perambur Colony, including the Railway Mixed Higher Secondary School, Railway Institute, Railway Stadium, General Stores Depot, and quarters, along with other structures therein such as the Filter House in Ayanavaram Colony. This also includes the New Joint Office and connected roads from quarters to service buildings, stations, internal roads, Electrical and S&T offices, workshops, etc., in ADEN/Metro/MAS jurisdiction.