Fimbristylis cymosa

Greyish green perennial, forming tight tufts, 10-20 cm. Stem rigid, terete to triangular, deeply grooved, smooth. Leaves less than half stem length; sheaths 1-2.5 cm, pale brown, lustrous, with wide scarious margins; blades 1-1.5 mm wide, stiff, slightly turgid, frequently falcate, involute or flat, margins barbed towards apex, apex short, frequently mucronate. Inflorescence compact or diffuse with elongate peduncles, of 10 or more solitary spikes, or, in compact inflorescences, spikes sessile and clustered; bracts usually short, margins scabrous; branches compressed or from triangular to terete. Spikes 2-5 x 1-2.5 mm, ovoid, more or less terete, greyish brown to brown; rachis articulate, castaneous brown, with prominent brown or colourless wings; glumes 1.8-2 x 1-1.2 mm, keeled, light brown, with green or pale mid-rib not reaching apex, margins widely scarious. Stamens 2; anthers 1.7-1.8 mm, with small basal lobes; style 1-1.2 mm, brown; stigmas 2 (or 3), ciliate, 0.4-0.5 mm. Nut c. 0.8 x 0.6 mm, ovoid, lenticular, slightly rugulose, dark brown.  

Hooghly – Good morning with cyperaceae : Attachments (6 + 4). 5 posts by 2 authors.
I understand that id is very very difficult with this couple of poor shots (due to continuous downpour and bad light), recorded yesterday, again in front of my school. Any suggestion at genus level?

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Looks like Fimbristylis cymosa R. Br.

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References:

The Plant List 1  The Plant List 2  GRIN  Flora of Pakistan  Flora of China  India Biodiversity Portal