NO.50(87)/2017-18/CW/SE/TTRS | No.50(87/a)/2017-18/CW/SE/TTRS-Providing granite flooring for reception, lounge and dining area and vitrified tile flooring for room areas in Guest House, at SERC-TTRS | Repainting the walls, cleaning and applying protective coat to the facing tiles at Guest House, SERC-TTRS, Tirusulam