Welcome to Healthcare magic forum,
Please dont fall into trap of using things and becoming fair in few days and hours, its all biz gimics.
The colour of ur skin depends on the melanin
pigmentations which give ur skin good protection, dont try to decrease it.
Rather try to keep ur skin healthy will give u good looks than becoming fair.
U can try these things to keep ur skin healthy:
use liquid face wash to wash ur face dont use soap.
Scrub ur face once a week with good quality scrub availalbe to remove ur dead skin from the face.
Cleanse ur face daily to remove the dirt inside the skin pores, then tone ur skin and use good moisturizer to nourish ur skin.
This gives u healthy looking skin.