thnx for the doc.
i haven't traded in ndfs as such... am into the domestic market only. but there are players which have presence in both and lock arbitrage.
normally these are 10/20 paise arbitrage only (max 0.5%)...
but when there is serious liquidity problems in the system (usd shortage or overall liquidity problems) the rates can go to 50% and higher. but this situation normally lasts for 3-4 days only in an year. monday was such a day when dollar shortage in the system caused the c/t market to go into discount.... normally its in premium as inr interest rates are more than usd.
last year march end the liquidity problems (its a financial year close for india) caused the inr o/n rates to go as high as 100%!!!
for guys who have some exposure to india these can be opportunities to lock in good money.