Significant point mentioned midway:<p><pre><code>  The country’s growth also got a boost this year when 
  government statisticians changed the way they calculated GDP.
</code></pre>
From the linked article:<p><pre><code>  The Indian statistics ministry said that after updating the base year 
  used for marking trends in the economy and switching to a 
  market-price calculation of gross domestic product, the economy grew 
  by 6.9% in the year that ended last March. Using the previous 
  methodology, GDP expansion that year was 4.7%. China’s economy grew 
  by 7.4% in the 2014 calendar year.</code></pre>