India's aircraft monopoly — Tejas, ALH Dhruv, LCH Prachand, aeroengine MRO. ₹1.3L Cr+ order book incl. 97 Tejas Mk1A and 156 LCH. Sole integrator of Indian combat aircraft.

Defence electronics near-monopoly — radars, EW suites, sonars, missile electronics. ~₹75K Cr order book; QRSAM award pipeline. 29% OPM with net cash balance sheet.

India's missile production monopoly (with DRDO designs) — Akash, ATGMs, torpedoes, Astra. Lumpy execution but ₹20K Cr+ order pipeline post Op Sindoor replenishment.

Only Indian yard building conventional submarines (Scorpène/P-75I candidate) + destroyers. 36% ROCE, huge advance-funded balance sheet. P-75I is the trigger event.

Kolkata warship yard — P-17A frigates, survey vessels, export patrol craft. Fastest revenue compounding among DPSU yards (FY22 ₹1,754 Cr → FY26 ₹7,002 Cr).

Built INS Vikrant (IAC-1). IAC-2 the big optionality; commercial + defence MRO mix, ship-repair dry docks.

India's largest explosives maker — industrial + defence (Pinaka rockets, drones via Z-Motion, warheads). 37% ROCE, compounding 25%+. Defence now ~15% of revenue and rising.

Vertically integrated defence electronics — radars, EW, avionics, satellites. 40% OPM, debt-free, design-led IP. The margin king of Indian defence electronics.

RF and microwave modules for radar/EW/telemetry — sub-systems on Akash, QRSAM, Uttam AESA. OPM expanded 12%→29% in five years.

Combat simulators + anti-drone systems. 36-40% OPM, IP-led, but FY26 revenue declined 29% — order lumpiness is the core risk.

India's largest military drone OEM by fleet — but FY25/FY26 losses as army ordering paused and competition intensified. Turnaround bet on new logistics/loitering platforms.

Defence optics + space payloads + drone JVs. Only Indian company with large-aperture optics capability. Small but strategic.

Precision machining for nuclear, space (Vikas engines), defence + clean energy (Bloom fuel cells). Bloom concentration is the key risk; defence mix rising.

India's only superalloy + titanium alloy mill — feeds HAL engines, missiles, naval steel. Strategic monopoly, modest growth, PSU constraints.

Defence trucks, BMP upgrades, metro coaches, mining equipment. Rail+defence order tailwind but single-digit margins and lumpy execution.

Cable harness + system integration for IAI/ELTA offsets. FY25-26 revenue collapse as offset orders dried up — high customer concentration risk realized.

Satcom terminals + HF radios for Navy/P-8I. FY26 margin crash (37%→22% OPM) on execution delays; micro-cap volatility.

Mission electronics for missiles/torpedoes/UGVs. Revenue doubled FY24→FY26 (₹372→904 Cr); heavy WC funding via equity raises.

Aerostructures for Airbus (A220 doors), Boeing, Bell + hydraulics. Deep aerospace certification moat; thin margins, high debt legacy.

Titanium castings for aeroengines via Aerolloy — Safran, Rolls-Royce, GE deals. Building India's first aerospace-grade Ti recycling. Extreme valuation (266x P/E) is the risk.

Airfoils + turbine components for GE, Siemens Energy, Mitsubishi + defence. 37% OPM, long-cycle sole-source contracts.

Solid propellants for Akash/BrahMos boosters + commercial explosives. Small, volatile, but critical propellant niche.

Aero-engine tooling + precision parts for global OEMs (GE, Boeing ecosystem). 31-38% OPM; FY26 flat on US destocking.

Build-to-spec defence/space electronics + EMS. Strong Indian subsidiary ROCE masked by loss-making French design arm (Centum Adetel) — consolidated PAT negative while standalone thrives.

Defence structurals + rocket launcher assemblies (Pinaka ecosystem) scaling from a tiny base. FY26 growth stalled and margins compressed — execution volatility is extreme.

Aerostructures + India's only private airfield (Hosur) leased to aerospace users. Tiny but 60%+ OPM annuity-like airfield economics, debt-free.

Naval-grade steel fabrication + dairy equipment pivot to defence. 4x revenue in 3 years, 31% ROCE, near debt-free — a micro-cap execution story on naval capex.

Wire harness + electrical panels for Boeing (AH-64 Apache, Chinook) — Boeing supplier-of-the-year pedigree. Post-demerger pure aerospace play; leverage rising to fund capacity.

India's engineering apex — EPC, defence shipyard, precision engineering, semicon fab bids. ₹5.5L Cr+ order book; defence arm builds submarines (P-75I bid) and artillery (K9 Vajra).

Power equipment PSU back from the dead — FY26 PAT ₹1,600 Cr (3x YoY) on thermal revival + defence (guns, SSLV). Margin recovery still fragile at 8% OPM.

Automation, electrification, mobility. FY25 numbers reflect Siemens Energy demerger. Premium automation franchise at premium multiple.

Electrification + motion + robotics. ~30% ROCE, net cash. Data-centre electrification and rail tailwinds.

Motors, transformers, switchgear + OSAT semiconductor JV (Murugappa). FY26 sales +25%; semicon fab optionality priced at 110x.

Boilers, heat pumps, green hydrogen, bio-CNG, water. Green-transition portfolio building slowly; margin grind from 7%→10%.

Gensets + industrial engines. 39.5% ROCE, 21% OPM, net cash, dominant data-centre genset share. The quality compounder of Indian capital goods.

World #2 in high-chrome grinding media (mining/cement). 28% OPM; volume growth stalled but pricing + mix holding. Global duopoly with Magotteaux.

World-scale forgings (auto, industrial) + defence (ATAGS artillery won ₹6.9K Cr order, protected vehicles). Defence + aerospace now the re-rating engine.

Global #2 in <100 MW industrial steam turbines. 36% ROCE, net cash, 40%+ export mix, API turbines for oil&gas entering US.

Air compressors #2 in India, global expansion (US/Europe). 24% ROCE; oil-free tech ladder vs Atlas Copco.

Abrasives + ceramics duopoly (Saint-Gobain). Steady 19% OPM, 21% ROCE, net cash — quiet quality.

Bearing leader; FY26 numbers reflect industrial-business demerger (auto split). Post-demerger entity cheaper at 25x but transition noise high.

Bearings + industrial + auto systems. 27% ROCE, consistent 18% OPM compounding; Dec-FY. Premium MNC franchise.

Tapered roller bearings for rail/freight/industrial. Rail wagon cycle + export hub role for parent.

Ethanol/bio-energy EPC leader hit hard by ethanol capex pause — FY26 PAT collapsed to ₹24 Cr. SAF + CBG optionality remains.

Gensets + engines + financial services (Arka). FY26 sales +22%; leverage from Arka NBFC distorts consolidated optics.

Freight wagons + metro trains + naval boats. FY26 revenue dip on wagon order gap; Vande Bharat + metro pipeline is the story.

IoT-led EMS across auto, industrial, aerospace + OSAT semiconductor bet (Sanand). Revenue 5x in 4 years; cash burn from semicon capex is the watch item (FY26 CFO -₹600 Cr).

EMS with RFID and magnetics IP. FY26 margin recovery (6%→11% OPM) after consumer-mix reset; exports + industrial mix improving.

AC generators 1-200 MW — global #2 in gas/steam turbine-driven generators. 33% ROCE, debt-free, US data-centre + nuclear tailwinds; exports >50%.

CV + rail forgings. FY26 PAT collapsed (₹415→72 Cr) on inventory write-down discovered in stock audit — governance overhang now dominates the thesis.

Wagons, brake systems, containers + EV trucks. FY26 revenue -26% on railway ordering pause — cycle risk on display; brake + wheel JVs diversify.

Abrasives, ceramics, electrominerals (Murugappa). FY26 PAT hit by Russian sub (VAW) power costs + demand softness; core India franchise intact.

Pumps + valves; only qualified Indian supplier of primary coolant pumps for PHWR nuclear fleet. 25% ROCE, net cash, Dec-FY. Nuclear capex = structural optionality.

Boilers, presses, process plant EPC, sugar machinery. FY26 PAT dip on EPC mix; steady but low-margin heavy engineering conglomerate.