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Finance expense (Tables)
 12 Months Ended
Mar. 31, 2018
Text block1 [abstract]  
Summary of Finance Expense
     Year ended March 31,  
     2016      2017      2018  

Interest expense

    ₹ 1,206      ₹ 2,675      ₹ 3,451  

Exchange fluctuation on foreign currency borrowings, net

      4,172        3,267        2,379  
  

 

 

     

 

 

     

 

 

  
   ₹ 5,378      ₹ 5,942      ₹ 5,830