Iranian Foreign Minister Javad Zarif has acknowledged that Tehran was "obviously disappointed" with India`s decision to cut oil imports following US sanctions.
An interim nuclear deal with Iran that allows limited sanctions relief does not mean that the Islamic republic is "open for business", senior US officials said.
The US and its allies on Monday relaxed a range of economic sanctions against Iran.
US Secretary of State Hillary Clinton on Monday pressed India to do "even more" to cut its oil imports from sanctions-hit Iran.
Experts speculate that Japan will move to diversify its oil imports by turning to Saudi Arabia, United Arab Emirates, Qatar.
Day in Pics: 27th February
Showbiz World - February 27, 2015
Lingerie Fashion Night