@prabhjot well, a diesel engine's gotta do what a diesel engine's supposed to, right ? So, the Duster starts with the typical clatter, more pronounced than lets say, an MJD, and for the first 3-4 km or so, does sound gravelly, without transmitting vibes though. But then it settles into a smooth, free revving mode once warmed up, and particularly, in the 1800-2500 rpm, it has its sweetest spot. With windows up and AC set to "1" (no climate control) , its extremely quiet, almost T-Jet like. With additional sound dampening courtesy 3M underbody treatment, you will be hardpressed to spot the difference. But, on change of gears and accelerating through 3rd/4th , particularly while on inclines, you can hear the turbo whistle prominently. In short, its a well damped engine from NVH perspective, no gear knob /steering wheel rattles. But it IS a diesel engine, at the end of the day, and makes no bones about it.