Subhadrika Sen
Try to substitute sugar intake with sweeter ingredients like mashed banana or date paste.
Make your own health / granola bars with dry fruits and fruits. The inherent sweetness of the ingredients doesn't require added sugar during the making.
Check the labels of the food you purchase. Often sugar is added to them under fancy names.
Go for a 7-day no-sugar trial and you will see how your brain and taste buds are wired to not want sugar oh so often.