In the above code I have purposefully did not close a channel. Can any one tell me how to know if this is the coroutine which is still running/waiting...? (or) in other words.. I wan to debug a coroutine which is still running in IntelliJ. Please help. Normally if it was a thread then we could look at thread dump and figure out which thread is still running. but how do we do that for coroutine?

You can dump all Coroutines using https://github.com/Kotlin/kotlinx.coroutines/tree/master/kotlinx-coroutines-debug .