Ktm bike - Faulty engine issue not resolved

Not really sure where to start.. Should I regret buying one of the finest bike or should I simply curse the people, who I have to deal with post getting one!

I bought a KTM RC*** with high hope and expectation, only to discover that the bike came with a faulty engine (as found within * year of usage @ ***** kms approx).

The engine head they said needed to be replaced, for which I had to give away the bike to service center located at Kasturba Road and patiently wait for a week to get the job done. The service center people took their sweet time to get a replacement, which obviously didn’t do any justice. As the engine sound (rather noise) drastically increased post replacement.

I politely inquired with the center head about the strange noise, only to get a standard answer “this is normal”.

I further added why not replace the engine, as it is showing signs of defectiveness from the manufacturing unit (as it is just about a year old).

Again to my agony, he replied “the engine cannot be replaced, unless it shows greater malfunctioning”.

Now within another **,*** kms post the engine head replacement..the bike has come to a complete halt. The local mechanic says that the entire engine including piston/crank shaft etc etc etc needs to be replaced or repaired!!!!
It is very clear that it was a faulty engine right from the beginning!! As you guys will agree, issues are rather rare with a bike as old as ** or ** months.
Today as I dread spending another **,*** or **,*** INR for the same bike, it makes me wonder. Who should I blame?