I bought Celkon C51 and within a year it started displaying number of lines in the screen. The screen display has become very dull, messages are not legible. I could not see the time and other displays in the screen.
The instrument appears neat, smart, speakers are good but poor in display. It is suitable for hearing FM radio, phone calls but not messages. The battery is having good backup. So I am using it mostly like an FM radio. I am not satisfied with the display technology.of Celkon. I wont recommend anybody this as mobile phone.