I have got my Bharat Gas cylinder today. Delivery man weighed it with his hand weighing machine and the weight of gas cylinder was correct. At night, one of my friends came to my home. He had electronic weighing machine and then I checked the weight of cylinder on his weighing machine and found that there was 4 Kg gas less in the cylinder. I shocked. It is very frustrating. So I am planning to buy my own weighing machine. Do you have any idea of cost of electronic weighing machine?