XML 158 R129.htm IDEA: XBRL DOCUMENT v3.2.0.727
Activity in Options Available to be Granted Under Employee Stock Option Scheme (Detail) - Employees Stock Option Scheme - shares
 12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Options available to be granted, beginning of period [1] 112,121,300 58,080,400 57,116,000
Equity shares allocated for grant under the plan 0 100,000,000 0
Options granted (41,659,000) (47,060,000) 0
Forfeited/ lapsed [1] 2,385,050 1,100,900 964,400
Options available to be granted, end of period 72,847,350 112,121,300 [1] 58,080,400 [1]
[1] Does not include options exchanged on acquisition of CBoP since these options on forfeiture/ lapse are not available for re-issue.