New Delhi, Aug. 14 -- The Directorate General of Civil Aviation (DGCA) has issued a warning to Air India after finding that two of its Bangalore-London flights in May exceeded the permissible 10-hour flight time limit for which the airline did not have a satisfactory reason. According to Air India, the rostering issue on the two flights arose "due to a different interpretation of a permission that was granted to mitigate the border related airspace closure". "This was corrected immediately after the right interpretation was conveyed to us. Air India remains fully compliant with the rules," an airline spokesperson said on Wednesday. DGCA'S letter, dated August 11, said that the airline had, on June 20, been sent a show cause notice asking it...