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Balances Receivable from Related Parties (Detail)
₨ in Millions, $ in Millions
Mar. 31, 2017
INR (₨)
Mar. 31, 2017
USD ($)
Mar. 31, 2016
INR (₨)
Related Party Transaction [Line Items]      
Loans ₨ 38.0 $ 0.6 ₨ 38.2
Other assets 2,488.6 38.4 1,058.0
Total 2,526.6 $ 39.0 1,096.2
Principal Owner      
Related Party Transaction [Line Items]      
Loans 0.0   0.0
Other assets 233.1   164.5
Total 233.1   164.5
Others      
Related Party Transaction [Line Items]      
Loans 38.0   38.2
Other assets 2,255.5   893.5
Total ₨ 2,293.5   ₨ 931.7