Lenovo unveils K80:

 4GB RAM and 4,000 mAh battery:

tech specs:

~ 64-bit Intel Atom chipset with 1.2GHz CPU.

~ 5.5-inch 1080p display.

~ 13 MP rear unit with Optical Image Stabilization.

~ 4GB of RAM and 64 GB of internal memory.

~ 4000 mAh battery.

Price: $290, below 20k.
Availablity: india not known yet.

variant with 2GB RAM and 32GB internal memory will also be released.