XML 41 R80.htm IDEA: XBRL DOCUMENT v2.4.0.8
Assumptions used in Accounting for Gratuity (Detail)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Compensation And Retirement Disclosure [Abstract]      
Discount rate 8.75% 9.24% 9.00%
Rate of increase in compensation 7.00% 7.00%  
Rate of increase in compensation     10% for first year and 7% thereafter