Does cancelling non-EMI still works?

Choosing no cost emi on amazon/flipkart Cancelling the emi in a few days to get emi disc and at the same time not paying interest Does this still work?

I read it works for icici but sbi charges 3% prepayment charges

Ps: i used amazon icici card on flipkart and want to do this. And Congratulations to everyone who booked the console this sale!