Fix | Cpwd Dsr Electrical 2021

This document is structured to resemble a technical guide or an examination paper for engineers and quantity surveyors regarding the application of the 2021 DSR.

1. No state-wise variation – DSR 2021 is valid only for Delhi-NCR. Other states (Maharashtra, Karnataka, TN) have their own PWD SOR. Using CPWD DSR outside Delhi requires a “location factor” (typically +10% for metro cities, -5% for rural).
2. GST exclusion – All rates are basic (excluding GST), leading to confusion during billing. CPWD circulars clarify that GST is paid separately on the contract value, not on DSR rates.
3. Lag in technology – By late 2023, rates for smart lighting control (Zigbee, DALI) and lithium-ion-based solar batteries were outdated. Contractors must resort to “market rate” items.
4. Labour rates are national averages – In reality, electricians in Delhi charge ₹900–1,200/day, but DSR assumes ₹720/day. This forces contractors to negotiate higher labor overheads in their percentage bid.

• Efficacy (lm/W): Minimum 120 lm/W for indoor LED battens.
• Driver quality: Separate rates for external vs. internal drivers.
• CRI (Color Rendering Index): ≥ 80 for general areas, ≥ 90 for critical areas (hospitals, labs).

To ensure complete technical compliance, the DSR 2021 should be read in conjunction with: cpwd dsr electrical 2021

CPWD General Specifications for Electrical Works (Parts I-VII). This document is structured to resemble a technical