I have used Nokia 6220 classic before this which had a 5 MP Cam with XENON flash... compared to it N79's Pic quality is nothing as it has LED Flash... still I could take some decent pictures at night ... there are no issues so far.. internet works well... quite fast although it depends on the provider i guess...
You can go for NOKIA Lumia 800. This touch phone is very likeable due to its flash and apps n design n menu. And It costs you INR 14,850.