If the Redmi 4a feels a bit underpowered, then Xiaomi India has a surprise for you - a version with 3GB of RAM, up from the usual 2GB. This one also comes with 32GB storage. Set to go on sale on August 31, this model will cost INR 7,000. The regular 4a model, which is exclusive to Amazon India, is priced at INR 6,000 and there will be another sale on the same day - the 31st. It's important to note that this new version of the Xiaomi Redmi 4a is not tied down with exclusivity. Instead, it will be available through Mi.com, Flipkart, PayTM, TataCLiQ and, yes, Amazon too. Source
Source: http://www.gsmarena.com/xiaomi_india_new_redmi_4a_3gb_ram-news-26987.php