Airlines, including IndiGo, India’s biggest carrier, SpiceJet and Vistara, a joint venture between Tata Group and Singapore Airlines, had been preparing to resume operations from Monday with about a third of their capacity amid strict rules.

But new restrictions at major airports, including Mumbai and Chennai, forced airlines to scramble late on Sunday to revise schedules.

The confusion will make it even harder for airlines to recover from the impact of a two-month lockdown to contain the novel coronavirus that has already cost tens of millions of dollars in lost revenue, industry executives, lawyers and analysts said.

“The entire handling of the restart has been reduced to a farce, causing pain for airlines, airports, and passengers,” said an industry executive on condition of anonymity.