: Details for transformers, switchgears, UPS systems, and diesel generator sets.

Detailed units for LED luminaires, exhaust systems, and modular switches. External Electrical Distribution

The is a critical technical document used by government departments, public sector undertakings, and private architects for the estimation, tendering, and billing of electrical works . Released by the Central Public Works Department (CPWD) , it serves as the baseline for calculating the cost of various electrical installations based on market rates prevailing as of April 1, 2021. Key Highlights of DSR Electrical 2021

: Includes rates for LT/HT cable laying, street lighting poles, and overhead lines.

: Add the standard percentages defined in the DAR for minor equipment, sundries, and manual tools (typically evaluated between of the core material costs). Account for Water Charges : Append

Reflecting India’s energy efficiency mandates, the 2021 schedule explicitly prioritized . The rate structures provided detailed component analysis for BLDC deployment, which reduces fan energy consumption by up to 50% compared to traditional induction models. 3. Modern Facade and Architectural Lighting

Standards for poles, cross-arms, insulators, and conductors.

If a specific item is not listed in the DSR (e.g., a specific brand of smart home automation system), it is treated as a "Non-Schedule Item."

The is more than a price list – it is the legal and technical backbone for public electrical works in India. Whether you are estimating a ₹5 lakh wiring job or a ₹5 crore substation, DSR 2021 provides the reference for fair, competitive, and transparent costing.

Unlike early legacy schedules, the rates declared in the DSR 2021 explicitly account for localized post-GST structures. The standard item rates comprise:

The is the principal agency of the Government of India responsible for the creation of public assets. One of the most critical tools used by the CPWD for estimation, tendering, and billing is the Delhi Schedule of Rates (DSR) .

These are available on under “Publications → Schedule of Rates → Corrigenda DSR 2021.”

: Covers point wiring in concealed or surface conduit pipelines using Fire Retardant (FR) or Fire Retardant Low Smoke (FRLS) copper conductors.

CPWD Delhi Schedule of Rates (DSR) Electrical 2021 serves as the primary technical benchmark for estimating and costing electrical works across various Indian government departments.

All material and item rates specified in the schedule are calculated using the prevailing market rates in Delhi. The absolute base reference date for material pricing is set as . 2. Labor Cost Mechanics