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Segment reporting (Details Textual)
₨ in Thousands, $ in Thousands
12 Months Ended
Mar. 31, 2018
INR (₨)
Mar. 31, 2018
USD ($)
Mar. 31, 2017
INR (₨)
Mar. 31, 2016
INR (₨)
Disclosure of segment reporting [Line Items]        
Revenue ₨ 20,685,613 $ 318,044 ₨ 18,432,020 ₨ 15,034,896
One Customer of Data center-centric IT services [Member]        
Disclosure of segment reporting [Line Items]        
Revenue ₨ 2,261,482   ₨ 1,267,499  
More Than [Member]        
Disclosure of segment reporting [Line Items]        
Percentage of entity's revenue 10.00% 10.00%