If I am not satisfied with the alignment that braces provide, can I go for an interdental reduction to correct teeth alignment?

Interproximal reduction (IPR) is just a way to make space, so the space requirements for the case should have been calculated before you start the treatment. If there’s still further retraction required, you want to push the teeth back, then the dentist will just do more IPR. Sometimes it’s not necessarily that there’s not enough space, but it may be that there might be slight rotations of the teeth, so in that case, you have to adjust the position of the bracket. Because of the bracket’s wrong placement, the tooth will keep moving until it hits a maximum and then it stops. IPR is possible, but it’s normally something we decide even before we start the treatment.