I bought a sony ericsson neo phone at some dealer without any warranty from him as he was charging 3,500/- extra for 1year warranty, so now does my mobile has any warranty originally from the date i purchased as it was a brand new one?
When buying a phone brand new, it should have a warranty by default. Not sure why the dealer was charging extra for it. You should go back to the dealer to clear this up. You may also contact Sony for additional assistance.