www.groundreport.com/Arts_and_Culture/New-device-which-saves-33-of-LPG
Tarak Nath Chowdhury, a civil engineer invented a device, which can save LPG upto 30%. He also got Earth Care award for this. This simple device doesn't cost much and a modified LPG stove with this attachment is expected to cost around Rs.1500 - Rs.2000.
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