India-WRIS

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Using the SRTM DEM data of NASA, having a spatial resolution of 90 meters, the basin ans sub-basin boundaries for the Indian subcontinent have been delineated. As per this information, the country has been divided into 25 Major River Basins and 103 sub-basins.The names of the basins are given in the table:

Table 1: List of Basin Name and Area

Sl. No	Basin Code	Basin Name	Area(sq.km)
1	1	Indus (Up to border) Basin	453931.87
2	2a	Ganga Basin	808334.44
3	2b	Brahmaputra Basin	186421.6
4	2c	Barak and others Basin	45622.41
5	3	Godavari Basin	302063.93
6	4	Krishna Basin	254743.31
7	5	Cauvery Basin	85624.44
8	6	Subernarekha Basin	25792.16
9	7	Brahmani and Baitarni Basin	51893.68
10	8	Mahanadi Basin	139659.15
11	9	Pennar Basin	54243.43
12	10	Mahi Basin	38336.8
13	11	Sabarmati Basin	30678.59
14	12	Narmada Basin	92670.51
15	13	Tapi Basin	63922.91
16	14	West flowing rivers South of Tapi Basin	111643.87
17	15	East flowing rivers between Mahanadi and Godavari Basin	46243.06
18	16	East flowing rivers between Godavari and Krishna Basin	10345.16
19	17	East flowing rivers between Krishna and Pennar Basin	23335.82
20	18	East flowing rivers between Pennar and Cauvery Basin	63646.21
21	19	East flowing rivers South of Cauvery Basin	38646.11
22	20	West flowing rivers of Kutch and Saurashtra including Luni Basin	184441.06
23	21	Minor rivers draining into Bangladesh Basin	5453.23
24	22	Minor rivers draining into Myanmar Basin	24731.08
25	23	Area of North Ladakh not draining into Indus Basin	29238.78
26	24	Drainage Area of Andaman and Nicobar Islands Basin	6918.2
27	25	Drainage Area of Lakshadweep Islands Basin	462.59
28		Island Basin	371.4

Table 2: List of Sub Basin Name and Area

Sl. No	Sub-Basin Code	Sub-Basin Name	Area(sq.km)
1	1	Barmer Sub Basin	21646.88
2	1	Beas Sub Basin	19138.22
3	1	Chautang and others Sub Basin	27543.74
4	1	Chenab Sub Basin	29974.29
5	1	Churu Sub Basin	66890.7
6	1	Ghaghar and others Sub Basin	49984.26
7	1	Gilgit Sub Basin	27101.85
8	1	Jhelum Sub Basin	29196.01
9	1	Lower Indus Sub Basin	23891.72
10	1	Ravi Sub Basin	13566.95
11	1	Shyok Sub Basin	38724.57
12	1	Sutlaj Lower Sub Basin	38578.38
13	1	Sutlaj Upper Sub Basin	21425.47
14	1	Upper Indus Sub Basin	46268.85
15	2a	Above Ramganga Confluence Sub Basin	38792.4
16	2a	Banas Sub Basin	51639.43
17	2a	Bhagirathi and others (Ganga Lower) Sub Basin	63059.31
18	2a	Chambal Lower Sub Basin	11067.89
19	2a	Chambal Upper Sub Basin	25511.32
20	2a	Damodar Sub Basin	42050.58
21	2a	Gandak and others Sub Basin	56573.83
22	2a	Ghaghara Confluence to Gomti confluence Sub Basin	26403.75
23	2a	Ghaghara Sub Basin	58728.53
24	2a	Gomti Sub Basin	29618.82
25	2a	Kali Sindh and others up to Confluence with Parbati Sub Basin	48511.99
26	2a	Ramganga Sub Basin	30811.48
27	2a	Sone Sub Basin	64789.32
28	2a	Tons Sub Basin	16857.08
29	2a	Upstream of Gomti confluece to Muzaffarnagar Sub Basin	29381.01
30	2a	Yamuna Lower Sub Basin	125084.38
31	2a	Yamuna Middle Sub Basin	34830.46
32	2a	Yamuna Upper Sub Basin	35584.95
33	2a	Kosi Sub Basin	19037.96
34	2b	Brahmaputra Lower Sub Basin	87381.27
35	2b	Brahmaputra Upper Sub Basin	99040.33
36	2c	Barak Sub Basin	27615.78
37	2c	Kynchiang and other south flowing rivers Sub Basin	10310.93
38	2c	Naoch chara and others Sub Basin	7695.69
39	3	Godavari Lower Sub Basin	43821.19
40	3	Godavari Middle Sub Basin	36289.01
41	3	Godavari Upper Sub Basin	21469.99
42	3	Indravati Sub Basin	38974.42
43	3	Manjra Sub Basin	29485.75
44	3	Pranhita and others Sub Basin	36108.58
45	3	Wardha Sub Basin	46237.65
46	3	Weinganga Sub Basin	49677.35
47	4	Bhima Lower Sub Basin	23649.56
48	4	Bhima Upper Sub Basin	44807.62
49	4	Krishna Lower Sub Basin	39438.74
50	4	Krishna Middle Sub Basin	22286.59
51	4	Krishna Upper Sub Basin	54498.4
52	4	Tungabhadra Lower Sub Basin	41542.29
53	4	Tungabhadra Upper Sub Basin	28520.15
54	5	Cauvery Lower Sub Basin	17378.51
55	5	Cauvery Middle Sub Basin	57284.09
56	5	Cauvery Upper Sub Basin	10961.84
57	6	Subarnarekha Sub Basin	25792.16
58	7	Baitarni Sub Basin	14244.22
59	7	Brahmani Sub Basin	37649.47
60	8	Mahanadi Lower Sub Basin	57987.1
61	8	Mahanadi Middle Sub Basin	51877.65
62	8	Mahanadi Upper Sub Basin	29794.4
63	9	Pennar Lower Sub Basin	17992.3
64	9	Pennar Upper Sub Basin	36251.13
65	10	Mahi Lower Sub Basin	13379.26
66	10	Mahi Upper Sub Basin	24957.54
67	11	Sabarmati Lower Sub Basin	10825.49
68	11	Sabarmati Upper Sub Basin	19853.1
69	12	Narmada Lower Sub Basin	8897.8
70	12	Narmada Middle Sub Basin	40580.48
71	12	Narmada Upper Sub Basin	43192.22
72	13	Tapi Lower Sub Basin	4110.13
73	13	Tapi Middle Sub Basin	31759.69
74	13	Tapi Upper Sub Basin	28053.09
75	14	Vasishti and others Sub Basin	27477.72
76	14	Netravati and others Sub Basin	18759.52
77	14	Periyar and others Sub Basin	21893.97
78	14	Varrar and others Sub Basin	14163.19
79	14	Bhatsol and others Sub Basin	29349.48
80	15	Nagvati and other Sub Basin	24375.66
81	15	Vamsadhara and other Sub Basin	21867.4
82	16	East flowing rivers between krishna and Godavari Sub Basin	10345.11
83	17	East flowing rivers between krishna and Pennar Sub Basin	23335.82
84	18	Palar and other Sub Basin	35385.35
85	18	Ponnaiyar and other Sub Basin	28260.85
86	19	Pamba and others Sub Basin	18302.72
87	19	Vaippar and others Sub Basin	20343.39
88	20	Bhadar and other west flowing rivers Sub Basin	17936.32
89	20	Drainage of Ran Sub Basin	21035.42
90	20	Luni Lower Sub Basin	19735.35
91	20	Luni Upper Sub Basin	79886.74
92	20	Saraswati Sub Basin	27674.11
93	20	Shetranjuli and other east flowing rivers Sub Basin	18173.13
94	21	Karnaphuli and Others Sub Basin	3776.84
95	21	Muhury and Others Sub Basin	1676.39
96	22	Imphal and others Sub Basin	16754.9
97	22	Mangpui Lui and others Sub Basin	7976.18
98	23	Shaksgam Sub Basin	6523.5
99	23	Sulmar Sub Basin	22715.52
100	24	Drainage Area of Andaman and Nicobar Islands Sub Basin	7577.85
101	25	Drainage Area of Lakshadweep Islands Sub Basin	669.81
102		Island Sub Basin	371.4

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