01
A corpus no one else has
1.2M part listings cross-linked by OEM number, vehicle model, engine code and gearbox variant. Merged with workshop-forum vocabulary and 40k pages of scanned Indian OEM manuals.
Gurgaon → GlobalIdx live
§ 01 — Premise
Search for parts
the way a workshop actually
talks.
A small, fast embedding model trained on India's auto-part catalogs, OEM cross-references, and the Hinglish a mechanic actually uses. Because "Swift dicky strut" should find the tailgate gas spring — not nothing at all.
1.2M
Parts indexed
42 ms
p95 latency
10 · Q2
Partners
Fig. 03 — Clutch assembly / exploded viewRendered via Remotion · 30 fps
India's auto aftermarket runs on WhatsApp voice notes, dog-eared parts catalogs, and a workshop vocabulary that no keyword search has ever understood.
A buyer asks for a "Scorpio dicky wala strut, 2015, diesel ka". The catalog lists it as Tailgate Lift Support — Mahindra Scorpio mHawk 2.2L · 0609AA0044N. Fuzzy match misses. Keyword match misses. Both leave money on the counter.
General-purpose embedding models don't know that a dicky is a boot, that a silencer is an exhaust muffler, or that Alto K10 parts interchange with Maruti 800 on 60% of their SKUs. They were trained on the open web — not on the language of a 4-seat workshop in Kashmere Gate.
PartIndex is trained on that language. A compact bi-encoder, fine-tuned on triplets of query, matching part, and near-miss — with a vehicle-compatibility graph underneath it so every answer knows whether it will actually fit.
§ 03 — On record
Live against a 1.2 M-part index.
Sample query rotation · 4 shown
idx.srch · v0.4 · hi-en-parts-bi-encoder
p95 42ms
›▍
01
Clutch disc assembly
0602AA0050N·Scorpio mHawk 2.2L 2014–17·Valeo
0.94
match
02
Clutch plate 310 mm
DWF-0310-V2·Scorpio · XUV500 diesel·Valeo
0.91
match
03
Pressure plate cover assy
0602AA0048N·Scorpio Getrag 2014–17·Mahindra OEM
0.87
match
Listings sampled from production index, anonymized.↳ rotates every few seconds
§ 04 — Mechanics
A small, fast, domain-specific model. Not another wrapper on GPT.
02
A compact bi-encoder
Fine-tuned on ~3.4M triplets of (query, matching part, near-miss). 260M parameters. Runs on a single A10 at < 50 ms p95. No LLM round-trip in the hot path.
03
A vehicle-compatibility graph
Every SKU is bound to the vehicles it fits. "Will this clutch work on my Scorpio?" gets a straight yes or no — not a confidence score dressed up as one.
04
An API built for marketplaces
REST + webhook search, a drop-in React widget, a compat-check endpoint, and weekly delta updates. Tenant-keyed, RBAC, India + US-East inference pops.
The lexicon
Clutch plateDiaphragm springTailgate strutBonnet liftSilencer assyHeadlamp reflectorCV boot kitBrake masterRack endStabiliser linkWater pumpAlternator brushClutch plateDiaphragm springTailgate strutBonnet liftSilencer assyHeadlamp reflectorCV boot kitBrake masterRack endStabiliser linkWater pumpAlternator brush
§ 05 — Early access
We're shipping a developer preview to ten partners in Q2 2026.
If you run an auto-parts marketplace, a distributor network, a workshop-facing app, or an OEM e-commerce surface, we'd like to hear from you. One line about your use case is enough — the rest is a conversation.