Xiaomi has launched the new Mi Max Prime at 10 AM today and at Rs 19,999. Unfortunately, the device is already out of stock on Mi India website. However, Xiaomi also launched the device on Amazon and you can place an order here (https://goo.gl/9YcsWB) but the device will be available on October 19, 2016 so there will be some delay till you get your hands on to the device.
Regarding the specifications, Xiaomi Mi Max Prime is essentially just another variant of Mi Max which was launched back in June 2016. As the name suggests, Max Prime comes with a massive 6.44 inch full HD display with 342 ppi. 
It has the Qualcomm Snapdragon 652 Chipset and 4GB RAM. It features 128GB of internal storage and you can double up with a micro SD card. The smartphone runs on Android 6.0.1 Marshmallow out of the box with MIUI 8 on top. In the camera department, will come with a 16 megapixel rear camera with phase detection auto focus (PDAF), f/2.0 aperture, and LED flash. At the front, there is a 5 megapixel camera with 85-degree wide angle view.
the Xiaomi Mi Max Prime has given a 4850 mAh battery which the company claims can easily last 1-2 days depending on your usage. For connectivity, it comes with 4G LTE with VoLTE, Bluetooth 4.1, GPS/ A-GPS with Glonass, and WiFi 802.11ac with Mimo. Regarding the sensors it has ambient light sensor, gyroscope, accelerometer, and proximity sensor with an IR blaster to function as a Universal Remote. There is also a fingerprint scanner at the back. The phone weighs in around 203 grams.
Xiaomi is offering Redmi 3S Prime, Redmi Note 3 16GB/32GB and Redmi 3S at Rs 8,499, Rs 9,499/Rs 10,999 and Rs 6,499 respectively. Moreover, Xiaomi Mi Max is available for just Rs 13,999 and Mi5 is available for Rs 19,999.
Meanwhile, Xiaomi is holding its Diwali Sale under which it is offering lucrative deals including Rs 1 flash sale. Nevertheless, the next 1 Rs flash sale will happen at 2PM tomorrow where Xiaomi will sell 30 units of Redmi Note 3 (16GB) and 100 units of 20,000 mAh power banks for Rs 1. Also, on 19th October it will be 30 units of Mi 5 and 100 units of Mi Band 2.
Apart from the above mentioned offers, Mi Diwali Sale hosts a lot of other offers as well. You can check it out here: (https://www.mi.com/in/events/diwali2016/).