Nokia c6-01 is the best mobile among all other mobile phones in the range of Rs.10000 to Rs. 15000. I have purchased this phone in june 2011, the responses of this phone is amazing.
It supports Full navigation system, 3G tv, onscreen widget, video calling, 32 GB memory card, amoled display (screen shows time and date even in sunlight), MS office files, pdf files, free apps, free songs etc.
The camera of c6-01 is excellent. It has 8 mega pixel camera resolution which is highest in this range of phones. camera quality is very good. It supports 720p video quality but it also supports some 1080p videos also.
The frame rate is 28 fps in nokia anna operating system. It can improve by updating the phone from nokia anna os to nokia belle by which the frame rate will increase upto 30-32 fps.
It supports wi-fi, bluetooth for connectivity. It has 3.5 mm jack for audio .the sound qulity is better than other nokia phones. Motion sensors and resolution of phone able to support hd games.
The songs and application can be easily download from the nokia ovi store which is bst place for such items. Except these phone supports GSM, 3G and dual mode. It has power saving mode when the battery is low.
Calling and 3G data access consumes more battery so phone becomes in power saving when it is not using 3g data or video calling.
Finally, this phone is the best investment of your money.