karthiknan, sad to hear the damages. The GoodYear GT3 in fact is heck of tough tire. I can think of two possibilities if manufacturing defect is taken out of equation. 1) Your tyres must have already suffered. Bang on a pothole, tiny sidewall crack etc. 2) As experts quoted, the tire pressure. Its easy to believe that the tyres have x psi but do remember they lose pressure over time and sometimes as much as 2 psi over couple of week (or less). Leaky valves, tiny punctures all can contribute to air escape. I follow a habit of correcting cold air pressure (32-33 psi) on every fill and before every long trip. I tend to keep an eye on pressure gague while refilling air to figure out which tyre looses most. Out of many things on earth, tyre burst scare me the most BTW, I am happily running on MRF ZLO tyres on the worst roads of the season. Going strong, happy and grippy!