How to Inspect a Used Taxi Before Buying in Delhi – Complete Checklist

Delhi's used commercial vehicle market is large and active — but it also has its share of poorly maintained taxis sold with patched-up problems. A commercial taxi in Delhi can accumulate 80,000–1,50,000 km per year, meaning a 5-year-old vehicle may have 5–7 lakh km on the clock. Here's how to inspect one properly before handing over your money.

Part 1: Document Verification (Do This First)

1. RC Book: Check owner name, engine number, chassis number — all must match the physical vehicle
2. Commercial Permit: Verify validity and coverage area. Check at parivahan.gov.in
3. Fitness Certificate: Must be current. Check at the nearest Delhi RTO Testing Station (Burari, Sarai Kale Khan, Mayur Vihar)
4. Insurance: Must be a commercial vehicle policy — personal insurance is invalid for taxi operations
5. PUC Certificate: Must be current and show CNG compliance for Delhi
6. Loan NOC: Ask the seller directly — verify with the lending bank if unclear

Part 2: External Inspection

• Walk around the vehicle in bright light and check for dents, rust, and paint mismatches (indicates past accident)
• Check door gaps — uneven gaps mean the chassis may be bent
• Inspect the underside (use a flashlight) for rust, oil leaks, or repaired damage
• Check all tyres: tread depth, sidewall cracks, uneven wear (alignment issues)
• Verify all lights, indicators, and reverse sensors work

Part 3: Engine and CNG Kit Check

• Start the engine cold (not warmed up) — listen for knocking, excessive noise
• Check for smoke on startup (blue = oil burning, white = coolant, black = rich mixture)
• Inspect the CNG cylinder: check the hydrostatic test date sticker (must be within 3 years)
• Check CNG pipes and connections for wear, cracking, or improvised repairs
• Test both CNG and petrol modes on the test drive
• Check the engine oil color — black sludge means poor maintenance

Part 4: Test Drive (10–15 minutes minimum)

• Drive on a highway stretch (NH-24 or NH-8 nearby in Delhi) to check vibrations at 60–80 km/h
• Test braking from 60 km/h — vehicle should stop straight, no pulling
• Test AC on both CNG and petrol — switch between fuels during drive
• Listen for rattles from doors, dashboard, and suspension
• Check gear changes (automatic or manual) for smoothness