it could be wheel alignment. but it can also be your tyre isn't
fitted properly by the shop. most new tyres have some lines running
along the grooves. lets say if the left tyre had a green ring
nearer to the outside of the car, the right tyre's green ring shld
also be outside of the car. if the ring is facing the inside on the
right tyre, if u don't hold the steering wheel and let the car
move, it will veer more to the left.