I recently purchased a mobile - Samsung E2152 from Flipkart. I must say I am more than impressed by their service.
Initially I was very skeptical in buying any electronics online in India(have done in US on amazon). However since I was short of time, I took a chance and am a very happy customer now.
I paid the lowest price, I was kept informed about order status at regular intervals, the order was delivered in less than 36 Hrs, the packing was perfect. the phone box was sealed(which I was not able to find at any dealer in bangalore). To top the list I got a free VCD(although part 2 did not run). If I could ask more the phone box also had a 1 GB micro sd card with adapter free(not mentioned on the website).
I could not have asked more and hence for me Flipcart.com is Amazon.com of India.