Yes @vishalsinghnikumbh has got it spot on if u ask me .
Much of the media attention on ecommerce startups are due to the ever growing market opportunity in India ,from 5 billion $ to 35 billion $ in 2015 at a CAGR of 40% . http://www.researchandmarkets.com/reports/2042004/ecommerce_industry_in_india_20112015
Also when we look at the ramping up process of ecommerce startups, The availability of inexpensive easily customisable ecommerce applications like magento , Wordpress etc , large community of php developers in India makes getting up and running easy if you have a sound business model in place , and Indians being the master of thrift , no prizes to guess why the market is booming! We love a bargain and would prefer if someone dropped of stuff at our place ANY DAY, instead of having to step out in city traffic!
In order to become a digital manufacturing hub, we have to compete against the likes of China , and frankly I have no answer why we are not doing that .
Though companies like micromax have decided to manufacture many of their models locally , and kudos to them for that , yet almost every other player in the world assembles their phones and laptops in China .
India has the software power but not the grassroots hardware innovation , and again I wonder if it's just a lack of will ?
If this continues as you surmise not only will it continue to hamper the economic growth of our country , but we will always be 10 steps behind China and No matter how efficient a government is at the centre will always be dependent on multinationals to drive our growth engines .
I think innovations in education , renewable energy ( not just investment in solar farms ) and improving agricultural productivity among others should be the country's no. 1 focus in order to drive India's economic growth forward .