While shopping for gadgets, furniture, or home appliances, the term "No-Cost EMI" is an offer that most find hard to resist. Splitting payments into manageable monthly installments without any added interest seems too good to be true. But what's going on now might look like a free lunch, if lenders seem to be doing them a favour by offering interest-free credit, things aren't that simple. Lenders and retailers have structured no-cost EMIs, so they still make money. Here's how this works and what it means for consumers.