Diamond Power Infrastructure is an integrated Indian manufacturer of power transmission and distribution cables, producing everything from wire rod to extra high voltage (EHV) cables at a single complex in Vadodara. Roughly 80% of its capacity sits in medium voltage (MV) and EHV products, where qualification cycles are long and credible suppliers are few. The company controls the full value chain under one roof, a rarity that translates into an operating cost of just 6.5% of sales, far below peers. As of August 2026, its order book stood at 3,688 crores, about two times last year's revenue, with over 1,000 crores of fresh wins since April 2026. In Q1 FY27, revenue grew 129% year on year, EBITDA grew 172%, and PAT grew 191%, while EBITDA margin expanded to 12.3%, up 200 basis points. The current margin level of 12-13% is respectable for a converter business, and the trajectory suggests operating leverage is just beginning to show as utilization climbs from levels that were well below capacity at the start of the year.
The economics persist because Diamond Power has deliberately carved out the MV and EHV segments where technical barriers matter. Qualification for these cables takes years and requires proven reliability; competitors cannot quickly replicate an integrated plant that produces AL59 conductors, HTLS, and EHV cables. The company has already stopped making older ACSR conductors because the market shifted to AL59, and it now commands meaningful share in the niche. A 435 crore data center order, won within the MV segment, gives it pre-qualification leverage for further data center projects, an internal target of 1,000 crores in orders by March 2027. Customer concentration is a watchpoint: about 40% of the order book comes from one large group, but the board has mandated bringing that down to 20%. The business also carries 957 crores of legacy receivables, yet a dedicated team assesses about 300 crores as recoverable over the next 18 months, which, if realized, would free up cash without needing new debt.
The inflection is capacity commissioning tied to India's grid modernization and disaster management spending. Management has committed to specific timelines: two MV silane lines by 15 September 2026, the fourth rod mill by 15 October 2026, one installed CCV line by March 2027, a new LV cable project before March 2027, and a sixth CCV line by December 2027. The LV project alone adds roughly 42,000 km of annual capacity, with revenue potential of about 1,880 crores, targeting copper cables for data centers. These additions underpin the guidance: FY27 revenue of 4,300 to 4,500 crores at an EBITDA margin of 11% to 13%, and FY28 revenue of 7,500 crores. By 18-24 months from now, the company expects to be running near full utilization on its expanded lines, with data center sales contributing around 20% of business, exports building toward an order book of at least 500 crores, and the state-level underground cabling programs in Gujarat and other coastal states converting into 16,000 crores of MV cable orders over the next three years.
Management has walked the talk on delivery: Q1 FY27 results showed revenue growth of 129% and EBITDA growth of 172%, beating the pace implied by the full-year guidance. The QIP raise of about 1,750 crores is being deployed explicitly: 130 crores for the LV expansion, 74 crores for balancing equipment, 350 crores to repay unsecured promoter loans, 750 crores for working capital, and 625 crores for general corporate purposes. Post-QIP, net worth turned positive at 691 crores, and management states it does not expect substantial borrowings until March 2028. The earlier concern about negative net worth of 922 crores as of June 2026 has been resolved. Tax expense is negligible for at least two more years due to carried-forward losses, which protects profit growth. The original commitment to bring down the Adani share from 40% to 20% of the order book is still in process, and the company is actively diversifying across 200 plus customers in its current order book.
The earnings path is visible: if the company delivers the FY27 midpoint of 4,400 crores at 12% EBITDA, that implies around 528 crores of EBITDA; FY28 revenue of 7,500 crores at similar margins implies 900 crores of EBITDA, nearly a 70% year-on-year jump. The key assumptions are that all commissioning milestones hold, raw material prices stay reasonably stable with metal pass-through intact, and the data center order pipeline converts to at least 1,000 crores by March 2027. The single most important falsifier is execution slippage in the new LV project or the CCV lines, which would push revenue ramp into FY29 and widen the gap between guidance and actuals. Another risk is the Adani concentration, but management has a clear plan to reduce it, and the monsoon impact on Q1 FY27 was only 70-80 crores of top line, suggesting resilience. The tension between rapid order wins and the need to maintain margins is resolved by the fact that contracts include back-to-back metal and polymer cost pass-through, protecting the 11-13% EBITDA band even during commodity spikes.
companyname: Diamond Power Infrastructure Limited ticker: DIACABS sector: Power Transmission & Distribution Equipment (Cables, Conductors, Transmission Towers) DICABS makes the hardware that carries electricity: overhead conductors, power and control cables from low voltage through 400 kV extra-high voltage, and transmission towers. It is one of India's vertically integrated power infrastructure players, with manufacturing concentrated in a single location at Vadodara, Gujarat - a plant the com...
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