“Prithvi ke wasiyon ke aur se Namaskar”, or “Greetings from the earthlings” is what aliens might have picked up if they were listening in to the recordings of Earth sounds and greetings sent into space by NASA.
NASA has uploaded to SoundCloud the recordings of various sounds on Earth that were carried on the two Voyager spacecraft, launched in 1977, to greet any extraterrestrials that the probes may encounter.
Among the sounds selected to represent all of humanity were recordings of rain, a mother and child, stone tools and a heartbeat.
To this they added musical selections from different cultures and eras, and spoken greetings from Earth-people in fifty-five languages, including Indian languages like Hindi, Marathi, Bengali and others.
http://indianexpress.com/article/technology/science/now-listen-to-hindi-greetings-nasa-launched-into-space-for-aliens-on-soundcloud/