Noyyal River Basin Population details

District	Taluk	Person	Male	Female
Coimbatore	Coimbatore North	641021	321922	319099
	Coimbatore South	1605269	802641	802628
	Sulur	320406	160677	159729
Tirupur	Palladam	245428	123506	121922
	Avanashi	337923	168055	169868
	Tiruppur	980851	499648	481203
	Kangeyam	208227	104167	104060
Erodu	Perundurai	269600	135850	133750
	Erode	820720	410323	410397
Karur	Karur	444721	221107	223614
Over all basin total		5874166	2947896	2926270

Source: Census of India, 2011. 

Railfall details of various places in the Noyyal basin at various period (2000-2010)

(in mm)

Station	Chitrachavadi	Coimbatore	Tirupur	Kangayam	Perundurai	Kodumudi
Jan	5.7	14.8	11.8	16.5	13.6	12.4
Feb	7.2	7.5	6.0	6.4	10.8	4.9
Mar	7.5	13	12.2	14.1	13.7	12.7
Apr	38.2	45.2	55.5	50.1	45.2	47.3
May	57.2	71.6	84.1	85.9	94.9	75.8
Jun	60.1	35.6	18.4	17.7	22.8	16.9
Jul	99.0	48	25.2	17.4	41.2	28.4
Aug	51.8	30.2	43.5	38.0	67.5	56.6
Sep	44.9	42.3	70.8	64.9	93.6	77.2
Oct	140.4	156.6	162.7	159.8	160.3	139.2
Nov	135.4	117.4	114.3	105.6	108.5	88.4
Dec	35.6	46.3	38.6	45.4	37.1	34.1
Annual	683	628.5	643.1	621.8	715.2	593.9