HT/LT Cable Route GPR Survey in Delhi

Rates and page checked: 23 October 2026

What does an electric cable route GPR survey in Delhi cover?

The job is narrow and practical: before a new HT or LT cable is laid, find out what already occupies the strip it will run through. An electric cable route GPR survey in Delhi follows the proposed alignment from the source – a grid substation, a ring main unit or a feeder pillar – to the far end, and records every service the new cable will meet or run beside.

Along a typical Delhi feeder path we look for:

• existing 11 kV, 33 kV and LT cables, often several laid side by side;
• street-light and signal cables near the kerb;
• water mains, sewers and storm drains crossing the road;
• telecom cables and fibre ducts of more than one operator;
• gas pipelines where a city gas network is present.

Each find is marked on the ground and written into a signed report with its approximate depth. The general method is explained on our HT/LT cable route GPR survey page; this page deals only with cable routes inside Delhi. For other work in the capital, start from the Delhi GPR survey page.

How do Delhi's distribution areas affect a cable job?

Four networks share the city. BSES Rajdhani covers south and west Delhi, BSES Yamuna east and central Delhi, Tata Power-DDL north and north-west Delhi, and NDMC the New Delhi area. A cable contractor working for one of them usually stays inside that area, but a long feeder near a boundary can still pass close to another network's cables.

Three things follow for the survey:

• Records come in different forms. Ask the network that owns the new cable for its existing drawings, and expect gaps where older lines were never updated.
• Neighbouring owners matter. Water, sewer and telecom services under the same road belong to other bodies, and their crossings are marked just as carefully.
• The road owner may differ again. MCD, NDMC or PWD can control the carriageway, which affects working hours and traffic arrangements.

Mezux Touch is not affiliated with BSES Rajdhani, BSES Yamuna, Tata Power-DDL, NDMC, MCD or any other authority; contractors and consultants engage us for the survey.

Which crossings on a Delhi feeder route need extra passes?

Most of a cable route is scanned with continuous lines along its length. Certain points get a closer grid, because that is where strikes and redesigns usually happen:

1. Arterial road crossings. Services converge at junctions, and a crossing is often bored by HDD, so the bore path and both pit areas are scanned.
2. Near DMRC metro alignments. Elevated sections bring pier foundations close to the road edge; underground sections bring station boxes and diverted services. Permission to work there is arranged by the project owner with DMRC.
3. Drains and nalas. The designer needs to know whether the cable can pass under or must go over, so the drain bed and side walls are recorded.
4. Railway crossings and Yamuna approaches. Routes towards the river bridges cross softer, wetter floodplain ground where radar reach drops, and the report states the depth achieved there.

Scanned bore paths feed straight into crossing design; our HDD route survey page explains how the drilling team uses them.

Can underground electrical line tracing in Delhi pick out live cables?

Usually, yes. Underground electrical line tracing in Delhi uses two tools together. An EM locator detects the field around a cable carrying load, and can also follow a cable that is fed a signal from an accessible point. Radar then shows the line's position and approximate depth, and finds non-conductive services the EM locator cannot.

Harder cases are common in older parts of the city: four or five cables bunched in one trench, abandoned lines left beside new ones, and cables laid beneath later road layers. When lines run too close together to separate, the report says so plainly instead of drawing a confident single line. HT cable route mapping in Delhi is only as useful as that honesty, and a trial pit at a critical point can confirm what the instruments suggest. Our article on how GPR traces HT and LT cables covers the method in more detail.

Does your cable work order call for an L-section?

Some distribution work orders ask only for a route survey with marked crossings. Others ask for an L-section as well – a depth profile of the services detected along the cable path. The scan is done in the same visit; only the rate changes, from ₹24 to ₹32 per metre. If your order mentions an L-section, tell us when you ask for the quote. The L-section GPR survey page explains what the profile shows.

What does an electric grid underground survey in Delhi cost?

Billing follows route length. Because Delhi is inside NCR, there is no per-project minimum; the only floor is 4 km of survey, so a short cable link is charged as 4 km. GST is added to the invoice.

The slab is decided by the whole order: 25% off past 100 km, 40% off past 500 km and 50% off past 1,000 km, applied to every metre. Mobilisation, night-shift working, traffic arrangements and permissions, and CAD/GIS drawing sets are quoted as separate lines. All slabs appear on our GPR survey price list.