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Balances Receivable from Related Parties (Detail)
₨ in Millions, $ in Millions
Mar. 31, 2019
INR (₨)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
INR (₨)
Related Party Transaction [Line Items]      
Loans ₨ 33.9 $ 0.5 ₨ 55.0
Other assets 1,784.9 25.8 2,605.4
Total 1,818.8 $ 26.3 2,660.4
Principal Owner      
Related Party Transaction [Line Items]      
Loans 0.0   0.0
Other assets 310.2   288.1
Total 310.2   288.1
Others      
Related Party Transaction [Line Items]      
Loans 33.9   55.0
Other assets 1,474.7   2,317.3
Total ₨ 1,508.6   ₨ 2,372.3