GST Calculator (India)Calculate CGST, SGST, IGST with reverse tax & invoice summary
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CalculatorsDiscount & Profit MarginSingle & double stacked discounts, markup & profit margins
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CalculatorsActual-Size Screen Caliper & RulerCalibrated 1:1 screen ruler in cm, mm, and inches
CalculatorsEssential Government Portals Directory30+ verified central and state services (WB & India)
Citizen PortalsSmart PVC Card CropperCrop Aadhaar, Voter, PAN, Ration cards to CR80 PVC 300 DPI
Citizen ToolsPassport Photo Sheet MakerCreate ready-to-print 4x6 and A4 passport photo sheets
Citizen ToolsPerspective Document DeskewStraighten tilted or curved phone camera document scans
Citizen ToolsBanglarbhumi Land RecordsWest Bengal land record search and mutation portal
Citizen PortalsParivahan / Driving Licence / ChallanVehicle registration, driving license and e-challan services
Citizen PortalsSVMCM & Kanyashree ScholarshipsHigher education and student development schemes
Citizen PortalsIndian Land Unit ConverterConvert Guntha, Bigha, Kanal, Marla, Cottah, Chatak, Ground, Cent, Brass, CFT, Sq. Ft
Civil EngineeringCivil Engineering SuiteProfessional infrastructure calculation tools and references
Civil EngineeringIS 456 Column Design & Axial CapacityShort column axial capacity (Pu), slenderness ratio, minimum eccentricity, ties
Civil EngineeringIsolated RCC Footing Design (IS 456)Base area, one-way beam shear, two-way punching shear at d/2, rebar mesh
Civil EngineeringDevelopment Length & Lap Splice (IS 456)Anchorage Ld, bond stress (τbd), tension & compression lap lengths, hooks
Civil EngineeringSoil Safe Bearing Capacity SBC (IS 6403)Terzaghi and IS 6403 soil capacity, general/local shear, water table factor
Civil EngineeringFlexible Pavement Design (IRC 37)Traffic MSA, subgrade MR, structural crust layers (BC, DBM, WMM, GSB)
Civil EngineeringConcrete Mix Design (IS 10262)Target strength, water-cement ratio, aggregate proportions
Civil EngineeringRCC Beam Checker (IS 456)Singly/doubly reinforced beam moment of resistance & shear
Civil EngineeringBar Bending Schedule (BBS)Rebar cutting length, hook allowances, total tonnage
Civil EngineeringBrickwork & Plaster EstimatorNumber of bricks, cement bags, and sand volume in m³
Civil EngineeringIS Codes Directory (Civil)Searchable reference library of Indian Standard codes
Civil EngineeringCivil Drawing Books & DetailingArchitectural blueprints, structural detailing & drafting manuals
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