The Indian caught a peek of the F1 track, to host the big event in less than a fortnight.
But NK, 28, said that - before then - he'll return to India for the first time since January.
"The track looks good," he told local press, "and I managed to check out changes to the track such as in turn four."
Asked how he felt after the gruelling Sepang event, Narain Karthikeyan replied: "Okay.
"I've been preparing a lot - up to four or five hours a day." -GMM