CNG cylinder retesting
Periodic retesting of onboard CNG cylinders on cars, autos, buses and trucks, as required under the Gas Cylinders Rules, 2016.
Chief Controller of Explosives approved testing
Safe, certified CNG cylinder testing for your vehicle
Sugam Technical Services tests and certifies CNG cylinders fitted on cars, autos, buses and trucks, as well as cascade cylinders — with every result recorded and your certificate available online.
Already a customer? Sign in to see your vehicles, test dates and certificates.
CCE approvedTesting under Chief Controller of Explosives approval
All vehicle typesCars, autos, buses, trucks and cascades
Book onlineChoose a date and time slot, pay securely
Digital recordsCertificates and test history in your account
Services
Cylinder testing, inspection and certification
Cascade cylinder testing
Testing of cascade cylinder banks used to transport and store CNG.
Inspection & measurement
Valve, thread, visual and internal inspection, weight-loss check, wall-thickness measurement and hydrostatic pressure testing.
Certificates & records
A test certificate for every cylinder, with your vehicle's test history and next due date kept in your online account.
How it works
Book in minutes, test on the day
- 1
Register with your email
Enter your email address and open the link we send — no password to remember.
- 2
Add your vehicles
Add as many vehicles as you need and choose a date and time slot.
- 3
Pay online
Your slot is confirmed as soon as payment is received.
- 4
Bring your vehicle
Our technicians inspect and test the cylinder and record every reading.
- 5
Get your certificate
View and print the certificate from your account, along with your next test date.
What we check
A complete test, recorded reading by reading
Every test follows the same checklist, and the results are printed on your certificate so you know exactly what was examined.
- Valve inspectionCondition and fitment of the cylinder valve
- Visual inspectionExternal surface for dents, cuts, corrosion and fire damage
- Cylinder threadingNeck threads checked for wear and damage
- Internal inspectionInside of the cylinder examined for corrosion and defects
- Weight checkActual weight compared with the original tare weight
- Wall thicknessShell and bottom thickness measured
- Hydrostatic testTest pressure applied; total and permanent expansion measured
- Painting & markingFinish and identification markings checked
Why it matters
A tested cylinder is a safe cylinder
A CNG cylinder holds gas at very high pressure. Periodic testing finds corrosion, damage and weakening of the cylinder wall before they become dangerous.
Testing at the intervals set by the Gas Cylinders Rules, 2016 is also a legal requirement — a cylinder that is overdue for its test should not be refilled.
FAQ
Common questions
How often does a CNG cylinder need to be tested?
Periodic test intervals are set by the Gas Cylinders Rules, 2016. For CNG cylinders on vehicles this is typically every three years. The next due date is printed on your test certificate and shown in your account.
When are you open?
We work seven days a week. Vehicle-in slots run every 15 minutes, from 8:00 AM to 2:00 PM.
How far ahead can I book?
You can book a slot starting from one hour from now, and up to 15 days ahead.
Can I change my booking or get a refund?
You can change the date or time free of charge, up to one hour before your slot. Payments are non-refundable, and missed appointments are not refunded.
What should I bring?
Bring the vehicle and its registration certificate (RC). If you have the previous cylinder test certificate, bring that too.
Do I need an account to book?
Yes — registering only needs your email address. We send you a secure link; open it and your account is ready. You can then add any number of vehicles.
How do I get my certificate?
Once the test is complete, the certificate appears in your account under Test history, where you can view and print it at any time.
Which vehicles do you test?
Cars, autos, buses and trucks running on CNG, as well as cascade cylinders.
Contact
Get in touch
Questions about testing, bookings or certificates? Write to us and our team will get back to you.
care@sugamtechnical.comSugam Technical Services LLP
Village Gheelnarwa, Old Stone, Rewari Pataudi Road,
Near Bhalron Mandir, Pataudi,
Gurgaon, Haryana 121502
Email: care@sugamtechnical.com