http://www.myntra.com/sher-singh-offer Add 3 product which having tag “Buy 1 get 2 free” on cart (For example if you add one product of Rs. 500, second of Rs. 600 and 3rd of Rs. 650 then you need to pay only Rs. 650) Apply code TRYME20 to get 20% extra off....
there are different offers... they are also offering buy 3 get 2 free... scroll down the page you will see buy 1 get 2 free...