Scaly-breasted Munias (Lonchura punctulata) (above) are seed eaters, especially grass seeds LINK. A pair of adults regularly visits my garden hopping around foraging for grass seeds.
In this instance it was the Carpet Grass (Axonopus compressus) that was fruiting.
This is a creeping grass commonly used to turf lawns. The inflorescence is raised on a slender stalk at the end of which are two slender spikes bearing the flowers (above). Usually there is another spike below the upper pair.
The munias were able to reach the seeds by simply reaching upwards. At times they appeared to also pick up seeds from the ground.