Running Maintenance contract at Observatory Quarters-second estimate first half - Year 2025.

Amount

CIVIL WORK

14.75A:Cleaning of terrace/loft water storage tank (inside surface area) upto 2000 litre capacity at all heights with coconut brushes, duster etc., removal of silt, rubbish from the tank and cleaning the tank with fresh water disinfecting with bleaching powder @ 0.5gm per litre capacity of tank including marking the date of cleaning on the side of tank body with the help of stencil and paint and disposing of malba all complete as per direction of Engineer-in-Charge. (The old date already written on tank should be removed with paint remover or black paint and if date is not written with the stencil or old date is not removed deduction will be made @ Rs. 0.10 per litre) (if during cleaning any GI fittings or ball cock is damaged that is to be repaired by contractor at his own cost and nothing extra will be paid on this account)

15.23.1:Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.For thickness of tiles 10 mm to 25 mm

OD17699/2025-2026:Cleaning discoloured water closet using with brush and cleaning solution etc complete

OD17700/2025-2026:Cleaning shabby ceramic floor and wall tile with ditergent or diluted with hydrochloric acid etc complete.

OD17703/2025-2026:Providing and fixing enclosed type water meter conforming to IS:2373 and tested by Municipal Board complete with bolts,nuts rubber insertions etc. in 15mm dia nominal bore as per the direction of Engineer in Charge.

OD17704/2025-2026:Clearing side drain and removal of silt within a distance of 150m

OD17706/2025-2026:Supplying pressed ridge clay tile (Mangalore tile ) 20 mm thick pattern.

OD17707/2025-2026:Supplying pressed clay tile (Mangalore tile ) 20 mm thick pattern.

OD21637/2025-2026:Removing and readjusting withMP roof tiles of departmental or supplied tiles etc. as directed by departmental officials in charge

OD17709/2025-2026:Removing and readjusting with MP hip and ridge tiles of department or supplied tiles set in lime mortar and painting the exposed face etc complete as per direction of Engineer in charge.

50.9.13.1:Supplying and fixing Anjily wood wrought and put up for roof members including cost and conveyance of materials etc. complete .

50.9.14.1:Supplying and fixing Anjily wood reapers of size 50x25 mm with wire nails including cost and conveyance of materials etc. complete.

13.57.1:Painting with oil type wood preservative of approved brand and manufacture :New work (two or more coats)

OD17710/2025-2026:Finishing the roof with Berger Paint PU ROOF KOAT:Two or more coats on plastered surface including cost and conveyance of all materials and labour charges etc complete: Derived from the specification 13.60.1

OD17711/2025-2026:Supplying and laying tarpaulin sheet of size 21 feet X 18 feet tied over the extended damaged sheet roof for preventing leakage including the cost of materials etc complete as directed by departmental officers at site

18.19.2.1:Providing and fixing gun metal non-return valve of approved quality (screwed end): 32 mm nominal boreHorizontal

18.19.2.2:Providing and fixing gun metal non-return valve of approved quality (screwed end): 32 mm nominal boreVertical

18.21.1.2:Providing and fixing uplasticised PVC connection pipe with brass unions: 30 cm length20 mm nominal bore

18.21.2.1:Providing and fixing uplasticised PVC connection pipe with brass unions: 45 cm length15 mm nominal bore

18.22.2:Providing and fixing C.P. brass shower rose with 15 or 20 mm inlet:150 mm diameter

18.17.1:Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :25 mm nominal bore

18.17.2:Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :32 mm nominal bore

18.50.1:Providing and fixing C.P brass long nose bib cock of approved quality conforming to IS standards and weighing not less than 810 gms.15 mm nominal bore

18.51.1:Providing and fixing C.P. brass long body bib cock of approved quality conforming to IS standards and weighing not less than 690 gms.15 mm nominal bore

18.52.1:Providing and fixing C.P brass stop cock ( concealed) of standard design and of approved make conforming to IS: 893115 mm nominal bore

18.53.1:Providing and fixing C.P. brass angle valve for basin mixer and geyser points of approved quality conforming to IS: 893115 mm nominal bore

13.1.1:12 mm cement plaster of mix:1:4 ( 1 cement : 4 fine sand)

4.1.3:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:2:4 (cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

OD17713/2025-2026:Providing and fixing 15 mm C.P. brass pillar taps for wash basin

OD17714/2025-2026:Supplying and fixing flush tank vertical float valve including cost of materials,conveyance and labour charges etc . complete as per the direction of site engineer in charge.

OD17715/2025-2026:Construction of silt pit up to 50cm depth inside dimension and out side dimension 45x45 cm with PCC 1:4:8 using 10cm thick brick work and providing 1 No.CI grating 225x225 mm and necessary earth work excavation etc complete

OD17716/2025-2026:Supplying and providing water tank lid cover including conveyance etc complete as directed by departmental officers at site .

OD17717/2025-2026: Providing and fixing 110mm PVC floor trap.

OD17718/2025-2026: Rearranging and fixing tiled false ceiling of approved materials of size 595 x 595 mm in true horizontal level, suspended on Existing false ceiling frame as directed by departmental officers at site

50.9.15.1:Supplying and fixing 200 mm Aluminium aldrop

50.9.15.3:Providing and fixing iron hooks and eyes : 200mm.

50.9.15.4:Providing and fixing iron hooks and eyes: 150 mm

50.9.15.5:Providing and fixing iron hooks and eyes: 100 mm

50.9.16.2:Ceiling 12 mm Anjili wood planks, planed lap jointed and wire nailed to rafters and collars including all cost of materials labour charges etc complete

18.18.3:Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete:25 mm nominal bore

18.49.1:Providing and fixing C.P brass bib cock of approved quality conforming to IS: 8931.15 mm nominal bore

50.17.1.4:Supplying and fixing CP Health faucet good quality including cost of materials and labour charges etc. complete as per the direction of site engineer-in-charge.

17.7.4:Providing and fixing wash basin with C.I. brackets, 15 mm C.P. brass pillar taps, 32 mm C.P. brass waste of standard pattern, including painting of fittings and brackets, cutting and making good the walls wherever require:White Vitreous China Flat back wash basin size 550x 400 mm with single 15 mm C.P. brass pillar tap

17.18.1:Providing and fixing P.V.C. low level flushing cistern with manually controlled device (handle lever) conforming to IS: 7231, with all fittings and fixtures complete.10 litre capacity - White

17.13.2:Providing and fixing white vitreous china water closet squatting pan ( Indian type):Orissa pattern W.C. pan of size 580x440 mm

17.20.1:Providing and fixing solid plastic Seat with lid for pedestal type W.C. pan complete:White solid plastic seat with lid

13.43.1:Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface:Water thinnable cement primer

13.82.2:Wall painting with acrylic emulsion paint, having VOC (Volatile Organic Compound) content less than 50 grams/ litre, of approved brand and manufacture including applying additional coats wherever required, to achieve even shade and colour.Two coats

14.66.1:Finish walls with Acryllic Smooth exterior paint of required shade:Old work ( Two or more coats applied @ 1.67 ltr/10 sqm) on existing cement paint surface

50.18.7.3.2:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge 25 mm dia 10Kgf/ cm2- Internal work- Exposed on wall

50.18.7.4.2:Providing and fixing PVC, pipes fittings including fixing the pipe with clamps at 1.00 m spacing. this includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge 32 mm dia 6 Kgf/cm2 - internal work- Exposed on wall

50.18.8.3.2:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Concealed work, including cutting chases and making good the wall etc. 25 mm pipe 10kgf /cm2

50.18.8.4.2:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Concealed work, including cutting chases and making good the wall etc. 32 mm pipe 6Kgf/cm2

50.18.8.7.1:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Concealed work including cutting chases and making good the wall etc. 63 mm pipe 6 Kgf/cm2

50.18.8.9.1:Providing and fixing PVC pipes, fittings including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Concealed work, including cutting chased and making good the wall etc. 110 mm pipe 6kgf/cm2

50.18.9.17.1:Providing and fixing PVC pipes including fixing the pipe with clamps/ clip at 1.00 m spacing . This includes jointing of pipes with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge 63 mm dia 6 Kgf/cm2 - External work - Exposed on wall

50.18.9.19.1:Providing and fixing PVC pipes including fixing the pipe with clamps/ clips/ at 1.00 m spacing . This includes jointing of pipes with one step PVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge 110 mm dia 6 Kgf/cm2 - External work- Exposed on wall

50.18.9.20.1:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 63 mm dia Elbow

50.18.9.20.2:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement -63 dia 45 degree Elbow

50.18.9.20.3:Providing and fixing PVC moulded fittings /accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 63 mm dia Door Elbow

50.18.9.20.4:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 63 mm dia Bend

50.18.9.20.9:Providing and fixing PVC moulded fitting / accessories for Rigid PVC pipes, including jointing with PVC solvent cement-63 mm dia Socket /coupling

50.18.9.22.1:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 110 mm dia Elbow

50.18.9.22.11:Providing and fixing PVC moulded fittings/accessories for Rigid PVC pipes,including jointing with PVC solvent cement - 110 mm dia Socket/ coupling

50.18.9.22.12:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 110x75 mm dia Reducer

50.18.9.22.2:Providing and fixing PVC moulded fittings / accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 110 mm dia 45 degree Elbow

50.18.9.22.3:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement-110 mm dia Door Elbow

50.18.9.22.4:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement- 110 mm dia Bend

50.18.9.22.5:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes including jointing with PVC solvent cement 110x110x110 mm dia Tee

50.18.9.22.7:Providing and fixing PVC moulded fittings/ accessories for Rigid PVC pipes, including jointing with PVC solvent cement - 110x110x75 mm dia Door Tee

50.18.9.22.8:Providing and fixing PVC moulded fittings /accessories for Rigid PVC pipes, including jointing with PVC solvent cement -110 mm dia Vent cowl

50.18.9.3.2:Providing and fixing PVC pipes includes jointing of pipes with one step PVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. 25 mm dia 10KGF/cm2

50.18.9.4.2:Providing and fixing PVC pipes includings joints of pipes with one step PVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in Charge. 32 mm dia 6 Kgf/cm2

50.18.9.9.1:Providing and fixing PVC pipes includings jointing of pipes with one step PVC solvent cement, trenching, refilling & testing of Joints complete as per direction of engineer in charge.110 mm dia 6Kgf/cm2

OD38484/2025-2026:Cutting branches of trees over hanging above any structures of girth below 30cm including of stacking of serviceable materials and disposal of unserviceable materials,cost of labour,hire charges of rop and pully etc with out making any damages to nearby structures etc. complete.

50.2.33.5:Cutting branches of trees overhanging above any structures of girth between 40cm to 60cm including stacking of serviceable materials and disposal of unserviceable material, cost of labour, hire charges of rope and pully etc without making any damages to nearby structures etc complete.

50.2.33.6:Cutting branches of trees overhanging above any structures of girth between 60cm to 90cm including stacking of serviceable materials and disposal of unserviceable material, cost of labour, hire charges of rope and pully etc without making any damages to nearby structures etc complete

50.2.33.7:Cutting branches of trees overhanging above any structures of girth between 90cm to 120cm including stacking of serviceable materials and disposal of unserviceable material, cost of labour, hire charges of rope and pully etc without making any damages to nearby structures etc complete.

OD17698/2025-2026:Engaging plumber for repair works as per the direction of site engineer in charge

OD17701/2025-2026:Engaging carpenter for various carpentry works

OD17712/2025-2026:Fitter engaging for Aluminium works as per the direction of Engineer- in-charge.

OD17702/2025-2026:Black smith engaged for welding work in various repairing works etc. complete as per the direction of site engineer in Charge.

OD17705/2025-2026:Labour engaged for cleaning the premises and other petty works.

SREEKUMAR R (BID ID -2217596)

Bidder Name

RAJESHKIRAN S P

SREEKUMAR R