Low cabin pressure mid-air forced a Delhi-bound SpiceJet aircraft from Mumbai, carrying over 100 passengers, to land at the city airport this morning under emergency conditions. All the passengers on-board were safe, an airline spokesperson said.“SpiceJet Boeing 737 aircraft (VT-SZB) was operating flight SG 160 Mumbai-Delhi. Enroute, the aircraft had a (cabin) pressure problem,” the SpiceJet spokesperson said. Following the standard operating procedure, the crew diverted the aircraft to Ahmedabad, where it landed safely, he added. There were over 100 passengers on-board the plane, the spokesperson said.