Hi Pankaj.I have been using only debit card for all my groceries and other purchases for past few years as I am skeptical credit cards usage due to late fees,hidden charges etc.I want to know if there is any benifit with credit cards if used with control and paid before due date.I do not understand when people say it is "interest free".Suppose if i have sufficient cash in my savings acct all the time, does it means I should stick with debit card or adopting to use credit card makes sense? Please share your experience in this regard.