The Bangalore Metro Rail Corporation (BMRCL) has decided to demolish and rebuild at least 20 buildings due to the National Highways Authority of India's (NHAI) delay in completing works on Bellary Main Road.

The portion of the Airport Line between Bagalur Cross and Bettahalasuru Metro stations would pass beneath the premises of the Air Force Station at Yelahanka, hence this is required in order to enter an MoU with the Indian Air Force.

The 38.44-kilometer elevated Phase 2B line between KR Puram and Kempegowda International Airport (KIA) would dive underground for 900 metres and then run at-grade inside the airport grounds. The issue came up during a recent meeting of the High Power Committee, which was led by the Chief Secretary. BMRCL chose to carry out the maintenance rather than risk a Blue Line delay due to NHAI construction. The timeframe for the Airport line is December 2024.