AP's prestigious Polavaram Project Construction Work has got an unexpected break as the generator in Excavator catches fire yesterday. The two engines of the Excavator which was imported from Germany were stopped working as caught fire of which one is totally damaged. The Excavator costs about Rs 82 crores which has a capacity of lifting 12 tons of material at a time. Now to correct the spoiled engines it takes almost 3 months which is possible only by the technical experts of Germany and Australia. Sources say that there will be a break in Polavaram Project work for sometime.