Indian police formed a high- level team to probe into the crude bomb scare, after it was found inside a suspicious package on a private airlines' flight in the southern state of Kerala's capital Thiruvananthapuram on Sunday, said police sources Monday.

"The Kerala government has ordered the probe, following which the state police have formed a high-level team to find out how this lapse occurred at the airport," a senior police official said.

"They are not ruling out the possibility that some individual or a group was trying to test the chinks in the system as a dry run to something bigger," said the official.

The crude bomb was inside a ball-shaped package found wrapped in a newspaper in the cargo compartment of Kingfisher flight IT 4731 which arrived from the neighboring city of Bangalore.