New Delhi, Oct. 23 -- Airlines are questioning Adani Group's push to move some international operations from Mumbai airport to Navi Mumbai, saying there is still no clear evidence that capacity needs to be cut.

Several carriers have asked Mumbai International Airport Ltd (MIAL) for detailed data on terminal capacity, maintaining that extra space planned at Terminal 2 and lower utilisation at Terminal 1 should reduce the need for slot reductions while redevelopment work is underway.

These are to be taken up at the 28 October meeting between MIAL and the 47 airlines represented by the Airline Operators Committee-Mumbai (AOC-Mumbai).

The standoff remains unresolved even after the civil aviation ministry put the proposed traffic redistribu...