As of now Redmi Note 4 (4GB/64GB) is the best option.
But if you don't want to buy it a flash sale, pay 500-1000 more on quikr/olx for sealed piece. Even at 14k (13000+1000), it is the best phone in this price segment. But if you try, you can get it directly from Flipkart/mi.com @13k, just ask...