Hello friends, in this video i am going to tell you about the best smartphones under rs. 20000 during flipkart big billion day sale and amazon great indian sale. my last video was about best smartphones under rs. 15000 during flipkart big billion day sale 2019 and amazon great indian sale. i guarantee that these flipkart BBD deals, offers and discount will be super as there wasn’t such kind of sale before. if you are new to gadget world and want to see more such videos in future, then stay subscribed to GADGET WORLD.