The rupee depreciated by seven paise against the greenback in early trade on Tuesday.
Daiichi would book an appraisal loss of $3.9 bn on its stake in India's Ranbaxy Laboratories.
Dollar held firm near a three-week high against yen on Monday as risk appetite picked up.
Asian stocks hit a two-month high with investors betting the economy will start to recover.
Satyam on Monday dipped as much as four per cent amid reports that its management is exploring a merger with another software company.
Reliance Communication launched GSM services in Mumbai and offered free talk-time worth Rs 900 spread over 3 months.
India will emerge as the fourth strongest economy among the G-20 countries after China,Russia and S Korea.
Ambanis' fight,Lehman collapse,Mumbai terror strikes-- having seen all these,investors do not want any repeat this yr.