So whenever I turn my vehicle either to full right or left does steering wheel does not return to center I have manually return. As well as the front tires are straight they are sitting at angle. The top is pushed and the bottom kicks out
It sounds like your wheel alignment is very badly off - as @Moab says, you should take it back and get the dealer to sort it.
The vertical angle of the tyres is called 'camber' - you've just described a very large amount of negative camber (top in, bottom out). The lack of self-centering is usually down to the 'toe' angle - how far in or out the front of the wheels point with the steering wheel straight.
Any decent tyre place will be able to look up the correct values of these for your car, and many will do the check for you for free, and give you a print-out of the current values.
The link in This question shows an example of an alignment printout