Engine explodes while driving shooting parts out

Brand New Baleno Delta AT, not even a month old, had a major engine box failure, where the car just gave jerks during the drive and came to a halt in middle of the road. upon inspection we found a hole in the engine Oil sump, hole was of new 5 Rs Coin size, and oil was dropping out of it. The Maruti Suzuki service engineers were saying I must have hit the car into some pot hole or something like that and due to which the hole has been made. I was driving on a very good road with no potholes for miles. When the car was taken to Fortpoint and upon lifting the car on the lift and we saw underneath that there were indeed 3-4 such big holes in the Engine block, and all these holes were made from part coming out from within the engine block. Even the fortpoint service advisor and manager commented saying that this is due to something coming out from inside of the engine block and not due to anything hitting from outside. Upon further investigation they sent me email with some pictures (I am not even sure that these images are of my car engine) saying that the water had entered into engine via silencer and due to which it cause a hydrostatic lock. And due to which this happened , and this is not covered under manufacturing defect or warranty. I had no other option but to pay more than 67000 to get the repairs done . We never drove the car in water logged areas, nor did anything which could make this water enter into engine via silencer, Also most surprising and alarming thing is for 900 odd kms the car was with us since we brought it from the showroom, and never once the car gave us any indication of anything wrong, no noise, misfire, starting problem, knocking of engine, lack of power or acceleration, nothing of sort and suddenly its engine goes into this hydrostatic lock and explodes. How Safe is this behaviour for any car which explodes in middle of road and when I wrote to the maruti team, they tried to give me some technical reasons for this happening. My question is How can a vehicle give no sign of problem and just engine starts to disintegrate during a drive in motion??? luckily I was at a speed lower than 30kmph, I wonder what would be the case of me if I was on highway driving over 80kmph. I am sure I wouldnt be alive to write this review. I share this with you all cause I want everyone to be aware of this car's build quality and how maruti Suzuki' is shying away from owning upto its problems.

Looks, price, Automatic transmission option.over all build quality is far from any premium car and Bad product