NEW DELHI (AFP) -- India is reviewing its position ahead of a meeting of the UN's atomic watchdog on Iran's nuclear program this week, a senior minister said Tuesday, amid reports that New Delhi would either abstain or vote against Tehran.

"We are reviewing the situation and we will articulate our stand at the appropriate time ... there are still some hours yet," Defense Minister Pranab Mukherjee told reporters in New Delhi.

The Hindu newspaper meanwhile quoted unidentified senior Indian officials as saying that India would cast its ballot against Tehran if the resolution was called to a vote.

Another media report said India was planning to abstain after U.S. ambassador to India David Mulford last week warned that New Delhi could lose out on a historic nuclear deal with the United States if it did not vote against Iran.

Washington agreed last July to share advanced civilian nuclear technology with New Delhi if it separated its military and civilian facilities. But the agreement has to be approved by the U.S. Congress and the 44-member Nuclear Suppliers Group.

On Sunday, Prime Minister Manmohan Singh said India would not be pressured into taking a stand on Iran.

"We will do what is right for the country. India's national interest is the prime concern whether it is domestic or foreign policy," Singh told reporters.