I have been using Flipkart.com for 2 years. And I can say I have awesome experience with them. Some say that In India Flipkart is even better than Amazon.com.
I totally agree with them. I had no problem with there delivery date and quality of items. Their customer service is also very good, polite and helpful. It is completely genuine and the return policy is also good. Don’t listen to others and if you don’t have any experience with them go for it.