The man, in his early 30s, left a suicide note saying "life makes no meaning without you" before jumping to his death from a bridge on Maghreb Motorway.
A team of rescuers went to the scene and discovered he was dead, the Arab Times reported.
The Interior Ministry received a distress call from a motorist saying a person had jumped off the bridge and fallen on his vehicle, the report said.
They went ahead to check CCTV footage at the location and discovered he had committed suicide.
The remains have been sent to forensic examination and a case has been registered.
The identity of the Indian was not disclosed.