I too own a Suzuki Alto.It is really difficult to make a good choice of lipkits for it.
A slight overdo can destroy its looks.
I didn't find any bolt on lip kit for alto in the market.
The modification of bumper is a good idea but sadly we have very few good denters in the market.Most of the denters cannot do this work up to the mark.
These reasons forced me to leave the car as it is.However, I did alot of research and found some really good modified Altos on Internet.Here I am attaching pictures of an Alto that I found really decent and tempting.If you can do something similar to this,then you will really come up with a nice hot looking Suzuki Alto.
Last but not the least,tell me what rim size you are running on.
If your car has 12 inches rims,then I would suggest you to go for 13 inches as Alto looks pathetic with bodykits and 12 inches rims.
The front looks really decent and that mesh grill is adding to the looks of the car.
This is the toughest part.Alto's rear bumper is really difficult to modify.This simple kit has added elegance.