India, March 10 -- An Air India flight, heading to Delhi from the United States' Chicago on Thursday, circled back after around 10 hours in the air after most of the lavatories on the flight became clogged and inoperable.

Out of twelve, eleven of the lavatories on the Air India flight, which embarked on a 14-hour journey to Delhi from Chicago, got clogged, the report added, View from the Wing reported.

Only one lavatory in the business class was usable on the flight, which was carrying some 300 passengers, the report added.

This happened when the flight crossed over Greenland after about four and a half hours into the journey. The airline then decided to head back to Chicago's O'Hare International Airport, leaving the passengers nowher...