Maruti Suzuki India — Ciaz zdi+ shvs hp06b4747 got changed with left front bearing after only 5970 kms run.

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Hp06b4747 ciaz zdi+ shvs purchased from goyal motors shimla on[protected]. Got serviced @ stan autos chandigarh on[protected] after a run of 5000 kms and was felt with an unusual sound from left front wheel since then.
Then the vehicle was taken to stan autos ludhiana hambra road workshop for diagnosis of the problem and they checked and replaced the left side front bearing with new one under warranty.
But my question and insecurity is that why this problem arrived in the new car so early?
Where should i feel secure after purchasing the new car that to be top model from the company?
What if this type of problem arrives again the what should i do?
Whom should i blame?