This excerpt taken from the INFY 6-K filed Apr 20, 2005.
Gain/Loss on forward exchange contracts
Until April 1, 2004, Indian GAAP required the premium/discount on forward contract to be recognized as income or expenditure over the life of the related contract. Under US GAAP, the same is marked-to-market as on the reporting date. The resultant gain / loss is recognized immediately in the income statement. Effective April 1, 2004, the company changed its accounting policy in India in line with the revised Accounting Standard 11 on forward contracts and hence the company has decided to account for the forward exchange contracts based on their designation as effective hedges or not effective.