Fro recent press reports from DRDO chief on imminent launch of Agni-5, that vehicle is supposed to be 3 stage vehicle.
Now if A5 turns out to be MIRV then IMHI the last stage in the missile warhead section, would mean he is pointing to a CUSP stage.
OTOH if it is Non-MIRV, then he is most likely referring to small thrusters that are part of the MaRV.
Here is an old drawing from 200& published in IDR. See configuration Agni-3C
Now if A5 turns out to be MIRV then IMHI the last stage in the missile warhead section, would mean he is pointing to a CUSP stage.
OTOH if it is Non-MIRV, then he is most likely referring to small thrusters that are part of the MaRV.
Here is an old drawing from 200& published in IDR. See configuration Agni-3C