Tender For Repair Maintenance Operation Dg Sub Station, Lifts, Fire Alarm System, Fire Fighting System, Air Washer And Sound System In Office Building And Residential Complex For Ag ( B ) Office, Patna. ( Sh: - Shifting Of Fire Sprinkler And Fire Detector Due To The False Ceiling Work In The Conference Hall And Video Conference Hall At 1St Floor Of Ag Office, Patna. )