Long queues and chaos greeted passengers at Indian airports as the country partially restarted domestic air travel after two months of coronavirus lockdown.
But dozens of flights were cancelled, leaving thousands of passengers stranded.
India has stepped up preventive measures ahead of resuming domestic flights.
At airports, passengers have their body temperatures scanned and security officials are checking that travellers have downloaded a compulsory government-backed tracing app.
Other measures include the disinfecting of shoes and luggage.
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