U.S. energy secretary Ernest Moniz will not travel to India as planned next week, an energy department official said on Wednesday, the most serious repercussion yet in a dispute over the arrest of an Indian diplomat in New York.
Mr Moniz's trip is the latest and most serious casualty in an escalating row over the treatment of Devyani Khobragade, India's deputy consul general in New York.
(Read more: India tells US to close embassy club)
India is furious at her arrest, handcuffing and strip-search last month after she was accused of visa fraud and of paying her maid less than a third of New York's legal minimum wage.
"We have been in conversation with Indian counterparts about the dates, and we have agreed to hold the dialogue in the near future at a mutually convenient date," the U.S. energy department official told Reuters.