Amazon.in is India's fastest growing E-com and I guess the biggest market place. No Doubt Amazon is known for it's great prices, larger options of products across the segments and awesome customer centric - Customer Support and polite& well mannered Customer care executives.
I had personally placed about 30+ orders on amazon.in since last 12 months including my apple MacBook Air, mobile, Sony Bravia LED TV and many electronic products and Amazon's fulfilment was awesome and hussel-free.
They are improving delivery speed but I guess delivery? speed need to get a bit more faster. Apart from that everything is awesome.