Need to Purchase Chromecast 2

Hey Dimers,

I have been a regular follower of DD and a fan of it.
I need help in purchasing Google Chromecast 2.
I have been researching about it for quite a while, but resulting in nothing much (max 6% ebay discount).
I see, paytm offered 15% cashback back in May, but I missed the deal.
Can anybody suggest me, how to get maximum discount from the original 3399 INR pricetag?

Thanks in advance!!