You won't get an LPG cylinder if you forget this number. Know the new rules to save yourself the trouble
- bySudha Saxena
- 22 Apr, 2026
The DAC number is now required for LPG cylinder delivery. If you don't have this code, you won't receive the cylinder even after booking. Learn how to get it.
If you book a gas cylinder but don't receive it on delivery, the reason isn't just a supply shortage. A new rule regarding LPG delivery is rapidly being implemented, ignoring which could prove costly. Many people are unable to receive their cylinders despite booking them because they lack a crucial code. Without this code, the delivery agent can now refuse to deliver the cylinder.
What is DAC number and why is it necessary?
DAC, or Delivery Authentication Code, is a unique security code implemented by the government to secure the LPG delivery system. This code works like an OTP and is generated individually with each booking.
Its purpose is to prevent fraudulent deliveries, black marketing, and gas theft. Cylinder delivery will not be considered complete until the customer provides this code to the agent.
How to get DAC number?
You don't need to complete any separate application or process to obtain a DAC number. This code is automatically generated when you book an LPG cylinder using your registered mobile number.
This code is sent to your mobile via SMS, call, or WhatsApp. Therefore, it's important that your mobile number is updated and active with the gas agency.
Why are many people not getting cylinders?
People in many parts of the country are complaining that they are not receiving gas despite booking. A major reason for this is the lack of knowledge of the DAC number.
If the customer is unable to provide this code upon delivery, the agent takes the cylinder back. Sometimes, people are unaware that the message sent to their mobile phone is the DAC code.
What to do if DAC number is not found?
If your DAC number hasn't arrived due to a technical issue, don't panic. You can ask the delivery agent to re-issue the code.
Alternatively, you can contact your gas agency to obtain the code. The most important thing is to have the code with you at the time of delivery.
How is the new system changing the way of LPG delivery?
With the implementation of the DAC system, LPG delivery has become more transparent and secure. This is expected to reduce instances of incorrect billing and fraudulent deliveries.
However, it's important for consumers to remain vigilant. Missing even a small piece of information could prevent you from receiving a cylinder.






