Proceed with your order (that is, enter shipping details & billing details) till you are redirected to payment page. It should look something like this
Select the Offers Available at the Bottom of this Page. Which will redirect you to multiple offers. From here, choose your bank (the one whose card you want to use for the transaction).
This will take you to next screen where you will have to input your card details. Please ensure that after entering details, you see 'offer applied' message at the bottom. There after you will be sent an OTP as a privacy measure. Just input that and your No Cost EMI transaction is complete.
In case you face any difficulty, please contact us on website chat, pr call us on 08047108792. We will try to resolve the issues at the earliest.