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Trade receivables (Tables)
 12 Months Ended
Mar. 31, 2019
Text block [abstract]  
Schedule of Trade Receivables
     As at March 31,  
     2018      2019  

Trade receivables

    ₹  121,413      ₹  119,686  

Allowance for lifetime expected credit loss

      (14,570 )       (14,824 ) 

Assets reclassified as held for sale

      (1,407 )       —    
  

 

 

     

 

 

  
   ₹  105,436      ₹  104,862  
  

 

 

     

 

 

  

Non-current

      4,446        4,373  

Current

      100,990        100,489  
Summary of Allowance for Credit Loss

The activity in the allowance for lifetime expected credit loss is given below:    

 

     As at March 31,  
     2018      2019  

Balance at the beginning of the year

    ₹  9,108      ₹  14,570  

Additions during the year, net (Refer Note 21)

      5,456        980  

Charged against allowance

      (29 )       (772 ) 

Translation adjustment

      35        46  
  

 

 

     

 

 

  

Balance at the end of the year

    ₹  14,570      ₹  14,824