Based on the international market, the rates of oil and petroleum products are being fixed. In Chennai, from 1st September the rate of 19 kilo non- domestic cylinder was sold at Rs 1723. Now this has been reduced by Rs 41. Now the rate is Rs 1682. Similarly the non-subsidized LPG was selling for Rs 902.50. Now the price has been reduced and the rate has been fixed at 879.50.