1. Budget
UNDER 25-30k !!!!!!!!
2. Display type and size?
AMOLED OR TFT / Should Be More Than 4.5".
3. Form Factor? bar, slider, flip?
Bar.
4. Preferred choice of brand?
Sony - Samsung - LG - Micromax.
5. Preferred input method (QWERTY, touchscreen, numpad, touch-n-type).
Touchscreen...