Government of India has made Aadhaar Card necessary to avail LPG Subsidy benefits. Aadhaar is the 12 digit Unique Identification no. given to every Indian Citizen. Aadhaar is mandatory to every Indian citizen. It is a proof of Identity as well as residence.
If you are a LPG consumer, then it is necessary to link your Aadhaar no to your bank account to avail LPG subsidy and other benefits. If you fail to do so, then you have to purchase the LPG cylinder at a price more than Rs 1000. However if you link your Aadhaar no then your subsidy benefit will be automatically credited to your bank account.