Why does Kolkata need a second airport

Calcutta Airport

Munich (MUC) Calcutta (CCU) 12.06.2021 - 26.06.2021Air France from 578.00 € Check Munich (MUC) Calcutta (CCU) 12.06.2021 - 26.06.2021Air France from 578.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 29.07.2021 - 06.08.2021Vistara from 609.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 29.07.2021 - 06.08.2021Vistara from 609.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 15.07.2021 - 20.08.2021Vistara from 609.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 15.07.2021 - 20.08.2021Vistara from 609.00 € Check Munich (MUC) Calcutta (CCU) 13.06.2021 - 26.06.2021Klm Royal Dutch A ... from 627.00 € Check Munich (MUC) Calcutta (CCU) 13.06.2021 - 26.06.2021Klm Royal Dutch A ... from 627.00 € Check Bremen (BRE) Calcutta (CCU) 10.06.2021 - 14.06.2021Klm Royal Dutch A ... from 634.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 02.07.2021 - 30.07.2021Klm Royal Dutch A ... from 643.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 19.07.2021 - 02.08.2021Gulf Air from 646.00 € Check Frankfurt am Main (FRA) Calcutta (CCU) 19.07.2021 - 02.08.2021Gulf Air from 646.00 € Check Hamburg (HAM) Calcutta (CCU) 27.08.2021 - 11.09.2021Air France from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 27.08.2021 - 11.09.2021Air France from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 01.08.2021 - 31.08.2021Air France from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 01.08.2021 - 31.08.2021Air France from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 27.08.2021 - 11.09.2021Klm Royal Dutch A ... from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 27.08.2021 - 11.09.2021Klm Royal Dutch A ... from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 01.08.2021 - 31.08.2021Klm Royal Dutch A ... from 650.00 € Check Hamburg (HAM) Calcutta (CCU) 01.08.2021 - 31.08.2021Klm Royal Dutch A ... from 650.00 € Check