Illuminatus, I want to make sure I can use this verb correctly. Would you kindly provide me a couple of example sentences so that I can contextualize the meaning. I don't think we have an exact word for this in English.
How about "drowse"? drowse: (past and past participledrowsed, present participledrows·ing, 3rd person present singulardrows·es) intransitive verb be half asleep: to be in a state partway between sleeping and waking.
Source: Encarta dictionary
I think snooze or doze or feeling sleepy can also express the state of onghna though in Gujrati oonghna may actually be meaning more than what oonghna stands for in Hindi.