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Finance expense (Tables)
 12 Months Ended
Mar. 31, 2019
Text block [abstract]  
Summary of Finance Expense


     Year ended March 31,  
     2017      2018      2019  

Interest expense

    ₹  2,675      ₹  3,451      ₹  5,616  

Exchange fluctuation on foreign currency borrowings, net

      3,267        2,379        1,759  
  

 

 

     

 

 

     

 

 

  
   ₹  5,942      ₹  5,830      ₹  7,375