Google has released a standalone camera app on Google Play, that will will work with phones and tablets running Android 4.4+ (KitKat). The new app has added functionality Lens Blur, Panorama and more.
Nexus 5 is priced at Rs. 28,999 and will be made available from 14th November 2013 onwards. There are also rumours that Nexus 7 (2013) will also be available on the same date.