This is from the Wikipedia article (I assume it's the same, though this say the chasers were Su-30s). Dispite the great video, it ultimately didn't end too well wikipparently
.
The third test of the missile took place on 16 October 2015. The missile was to be tested for its low flying capability. The missile in flight was supposed to be brought down from 4800 meters to 20 meters gradually and in stages.
Su-30 MKI aircraft videotaped the flight. A press release by the
Ministry of Defence stated the missile was launched at 11:38 IST and all initial critical operations such as Booster ignition, Booster separation, Wing deployment and engine start were successfully executed and Nirbhay reached the desired Cruise Altitude. Although the take off was successful after repeated disruptions of countdown, the missile crashed into the Bay of Bengal 11 minutes into its flight after covering only 128 km of its 1000 km range.