1. Budget?
Upto 16k can be extended up to 20k if good option available.
2. Display type and size?
4.0 inch+
3. Form Factor? bar, slider, flip?
Bar
4. Preferred choice of brand?
Known brands
5. Preferred input method (QWERTY, touchscreen, numpad, touch-n-type).
Touchscreen
6. What camera...