Hi @Poonam_Dogra ,
Apologies for the delay in getting back to you, I havent yet achieved the desired result however I am thinking on this basis, just a hunch but I think this may work.
Select a population then apply a fork at the end and plug in 2 deliveries each of these deliveries will be a data extraction file with 2 different coupon baskets assigned under coupon management
generate a data extraction with the customer data and then enable generate outbound transition this will output from both deliveries the assigned coupon code and then customer
Union them both now you have the following data "CustomerID" "Coupon 1" "Coupon Name" "Coupon 2" "Coupon Name"
Use this data as target data and feed it into your email delivery, you can have both present as part of the campaign. (just remember in the last delivery you do not have to assign a coupon basket as 2 have already been assigned as part of data extraction) I have attached a short example workflow screenshot.
Hope it helps 🙂