Making the announcement on Facebook, the company said, "Your wish is our command! Due to the overwhelming demand for #Zenfone2 4GB variant, we’re bringing limited stock of ZE551ML / 1.8 GHz Processor / 4 GB RAM / 32 GB Storage priced at Rs.18,999 specially for India."

With all new design, ZenFone 2 features a 5.5-inch Full HD and a (1280x1920p) IPS display offering a pixel density of 403ppi with a wide 178-degree viewing angle and Corning Gorilla Glass 3.

The ZenFone 2 is powered by a 64-bit Intel Atom Z3580 quad-core processor clocked at 2.3GHz. and has 4GB RAM. The phone will be available in two RAM variants - with 2GB of LPDDR3 RAM and another with 4GB of LPDDR3 RAM.

The dual-sim ZenFone 2 has a 13MP PixelMaster camera with an f/2.0 wide-aperture lens and a 5MP front-facing camera. The phone runs on Google's Android 5.0 Lollipop with a new version of Asus ZenUI.

Key features:

Android v5 (Lollipop) OS
13 MP Primary Camera
5 MP Secondary Camera
Dual Sim (GSM + LTE)
13.97 cm Touchscreen
1.8 GHz Intel Atom Z3560 Quad Core Processor
Expandable Storage Capacity of 64 GB
4G (LTE) - 150 Mbps HSDPA
50 Mbps HSUPA