Skip to content
A CNG cylinder mounted in the hydrostatic test rig
PESO Approved Testing

Granth Motors CNG

Hydrostatic testing and certification of CNG cylinders, and kit fitment. Over 500 cylinders tested.

93227 05254Send an Enquiry

Services

Testing and certification

Hydrostatic cylinder testing

Full pressure test to PESO norms, with visual and internal inspection before and after.

PESO test certificate

Issued on passing, in the format the RTO accepts for fitness renewal.

Fitment and parts

CNG kit fitment

Approved sequential and conventional kits, correctly mounted and leak-tested before handover.

Valve and fitting replacement

Defective valves, brackets, high-pressure pipes and refuelling nozzles replaced with approved parts.

RC endorsement support

Documentation help for endorsing the CNG kit on your registration certificate after fitment.

Documents Required

Bring the vehicle with the cylinder as empty as practical, plus these papers.

Registration certificate (RC) of the vehicle
Previous cylinder test certificate, if any
CNG kit fitment invoice or endorsement copy
Owner identity proof: Aadhaar or driving licence
Insurance copy, for fitness-related work

Our Process

  1. 01

    Booking and inspection

    Call to reserve a slot. On arrival the cylinder is visually inspected and removed.

  2. 02

    Hydrostatic test

    The cylinder is filled with water and pressurised to the prescribed test pressure while expansion is measured.

  3. 03

    Result and marking

    A pass is dried, stamped with the test date and refitted. A failure is condemned and disposed of safely.

  4. 04

    Certificate issued

    You receive the PESO certificate, with the next due date on it so you know when testing falls due again.

Frequently Asked Questions

Generally every three years from manufacture or from the last test. The exact due date is stamped on the cylinder and printed on your previous certificate.

A failed cylinder cannot be used. It is condemned on the spot and disposed of correctly. We will guide you on buying and fitting an approved replacement.

Yes. The RTO requires a valid cylinder test certificate before granting or renewing fitness for a CNG vehicle.

Plan for four to six hours; most vehicles are released the same day. If we are running behind, we tell you before you leave the vehicle.

Yes. Bring the cylinder with the vehicle RC or the purchase documentation.

Enquire about this service

Map showing Granth Motors in Santacruz (East), MumbaiGet Directions© OpenStreetMap contributors

Testing due? Bring the vehicle in.

Mon – Sat, 9:00 AM – 9:00 PM

93227 05254WhatsApp
Call NowWhatsApp