New Delhi, March 28 -- India's aviation regulator, the Directorate General of Civil Aviation (DGCA), on Tuesday deferred implementing revised flight duty time limits (FDTL) for air crew, which experts said aligns with international safety standards but appears to now have been put on the backburner due to ostensible pushback from carriers.

In a revised regulation dated March 26, the DGCA said, "Operators engaged in scheduled air transport operations may continue to operate in compliance with the earlier rules from April 24, 2019 until their respective schemes are approved under this regulation."

While the DGCA did not comment, an official aware of the matter said the deferral resulted from pressure by some major airlines. The official, wh...