Fifteen-thousand airport workers in India have gone on strike. But an official says airports are still running smoothly with flights arriving and leaving on time.

Baggage handlers, cleaners and ground staff at 129 government-run airports have walked out of their jobs. They're protesting plans to privatize two major airports.

In Calcutta, strikers carrying union banners are marching around the terminal, chanting slogans.

The strike has been expected for days and there were fears that flights would be grounded, stranding tens of thousands of passengers.

India's two busiest airports, New Delhi and Mumbai are privately operated and are not affected by the strike.