选手主页

Santha Ruban

姓名: Santha Ruban
地区: 印度
参赛次数: 11
WCA ID: Santha Ruban2017RUBA01
性别:
参赛经历: 2017.04.08 - 2026.07.26
2025年度总结

个人最好成绩

项目地区排名洲际排名世界排名单次平均世界排名洲际排名地区排名复原/尝试
三阶311330592418.299.3154201993179120/120
二阶4728715581.132.74313483611612293/95
四阶821038295331.2135.5926449487711239/40
五阶119149242361:08.541:15.354021142311525/25
六阶111146545202:31.492:39.0942271392101112/12
七阶6094627263:29.583:44.612813979631110/10
三盲234193759462:49.395/12
最少步553319211528601/1
单手1471226353513.3117.324141155817030/30
魔表48341831790717.4621.711742240464789/10
五魔方257249390241:27.311:42.699833269829122/22
金字塔9885756214865.568.0617707514479160/60
斜转337231891794.265.8754851494207159/60
SQ129625141078326.9430.808407203122619/20

排名总和

 地区排名总和洲际排名总和世界排名总和
单次429934138122125
平均32692754795680

奖牌汇总

256
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026决赛7 8.51 10.28
10.25     8.51      11.91     10.11     10.48
初赛5 8.56 9.31
13.21     8.57      9.46      8.56      9.91
Cubing Hunt at Coimbatore 2026决赛5 8.86 10.38
8.86      10.61     11.47     11.04     9.48
初赛9 10.44 10.96
11.29     10.85     10.74     11.41     10.44
Kumaraguru Cube Open 2025决赛8 9.73 11.34
9.73      10.78     12.20     11.39     11.86
复赛8 10.08 11.28
18.31     12.81     10.08     10.52     10.51
初赛6 8.34 10.96
9.37      10.87     8.34      16.01     12.64
Cubing Comes to Madurai 2025决赛15 9.01 11.92
12.54     12.52     12.78     9.01      10.69
初赛7 8.29 10.65
9.06      11.29     11.59     13.74     8.29
Kumaraguru Cube Open 2023决赛5 8.56 10.85
9.88      10.90     11.76     12.72     8.56
复赛6 8.70 10.30
8.70      12.51     9.81      9.29      11.81
初赛3 8.83 10.19
11.15     10.35     10.13     10.09     8.83
KCT Matrix Cube Open 2022决赛7 10.72 11.55
11.48     11.12     10.72     12.06     14.18
初赛2 9.28 10.37
9.87      9.28      11.28     11.04     10.20
VSVN Cube Open 2019决赛7 13.70 15.14
16.05     15.65     13.70     13.71     17.01
初赛5 11.40 13.48
12.85     11.40     13.16     15.00     14.43
VDCA Winter Open 2019决赛6 13.14 14.90
14.29     15.81     16.37     13.14     14.61
初赛7 13.66 15.52
15.89     15.84     13.66     15.67     15.04
Virudhunagar KCET Cube Open 2018决赛4 12.75 15.81
13.90     12.75     18.55     17.59     15.93
初赛3 14.75 15.47
19.18     15.59     15.71     14.75     15.12
NIT Trichy Open 2017复赛19 17.09 18.31
17.63     18.66     17.09     18.65     20.01
初赛20 13.34 18.08
17.45     17.56     24.93     13.34     19.22
Ban Parity Open 2017复赛25 15.65 20.93
21.19     18.53     23.35     23.07     15.65
初赛21 17.40 19.47
22.31     20.86     17.97     17.40     19.57
赛事轮次排名最好平均详情
Cubing Hunt at Coimbatore 2026决赛6 2.95 3.59
3.36      2.95      3.69      5.29      3.73
初赛7 3.16 3.56
3.64      3.16      3.43      4.55      3.60
Kumaraguru Cube Open 2025决赛3 2.30 2.87
2.33      2.30      3.06      3.77      3.21
初赛3 2.32 3.12
2.74      3.36      3.33      2.32      3.29
Cubing Comes to Madurai 2025决赛2 2.41 2.74
2.54      2.99      2.69      2.41      3.23
初赛8 1.13 3.41
2.98      4.23      3.01      5.59      1.13
Kumaraguru Cube Open 2023决赛5 3.03 4.14
6.02      3.76      3.36      5.30      3.03
复赛2 2.28 3.65
2.28      3.09      DNF       3.55      4.30
初赛1 2.27 2.93
3.18      4.69      3.01      2.27      2.61
KCT Matrix Cube Open 2022决赛1 3.09 3.59
3.09      3.34      3.83      3.80      3.62
VSVN Cube Open 2019决赛3 2.85 4.08
8.01      3.98      3.82      2.85      4.43
初赛3 3.19 3.68
3.78      3.82      7.14      3.45      3.19
VDCA Winter Open 2019决赛2 2.38 4.03
4.25      3.85      4.29      2.38      3.98
初赛2 3.55 4.23
4.93      10.40     3.55      3.98      3.79
Virudhunagar KCET Cube Open 2018决赛6 4.85 5.58
6.66      6.06      5.37      5.31      4.85
NIT Trichy Open 2017复赛11 4.77 5.57
5.07      4.77      4.98      DNF       6.65
初赛15 4.77 6.27
4.77      6.16      5.89      6.77      9.77
Ban Parity Open 2017复赛18 6.88 8.44
8.24      8.90      8.17      8.95      6.88
初赛10 4.24 5.50
4.65      9.38      4.24      6.79      5.06
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026决赛7 33.21 37.51
33.21     38.37     47.33     37.82     36.33
Kumaraguru Cube Open 2025决赛2 32.63 35.59
35.32     32.63     39.16     38.03     33.43
初赛5 32.50 36.27
33.35     32.50     38.49     36.98     41.21
Kumaraguru Cube Open 2023决赛3 32.68 40.28
40.31     DNF       42.36     32.68     38.18
初赛2 36.33 39.29
43.01     38.38     36.49     44.35     36.33
KCT Matrix Cube Open 2022决赛1 31.21 36.58
31.21     35.88     38.74     35.11     43.86
Virudhunagar KCET Cube Open 2018决赛3 59.72 1:09.28
1:26.59   1:12.70   1:08.60   59.72     1:06.55
NIT Trichy Open 2017初赛17 1:20.51 1:35.66
1:26.91   1:20.51   1:43.72   1:36.94   1:43.14
赛事轮次排名最好平均详情
Cubing Hunt at Coimbatore 2026决赛4 1:08.54 1:15.35
1:08.54   1:12.28   1:14.43   1:25.92   1:19.33
Kumaraguru Cube Open 2025决赛5 1:13.56 1:16.95
1:17.43   1:17.79   1:15.64   1:13.56   1:23.16
Kumaraguru Cube Open 2023决赛5 1:24.49 1:29.48
1:24.49   1:28.50   1:30.59   1:29.36   1:34.22
初赛5 1:18.16 1:25.20
1:22.14   1:26.86   1:30.96   1:26.61   1:18.16
KCT Matrix Cube Open 2022决赛4 1:14.77 1:23.90
1:30.91   1:21.52   1:14.77   1:37.45   1:19.28
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026决赛4 2:32.47 2:39.09
2:32.47   2:45.75   2:39.04
Kumaraguru Cube Open 2025决赛4 2:34.21 2:54.80
3:31.47   2:34.21   2:38.73
Kumaraguru Cube Open 2023决赛3 2:31.49 2:56.77
2:54.39   3:24.44   2:31.49
初赛4 2:36.29 2:49.10
2:46.35   3:04.66   2:36.29
赛事轮次排名最好平均详情
Cubing Hunt at Coimbatore 2026决赛3 3:29.58 3:44.61
3:29.58   4:01.81   3:42.45
Kumaraguru Cube Open 2025决赛2 3:31.16 3:45.27
3:31.16   3:47.24   3:57.41
Kumaraguru Cube Open 2023决赛5 5:16.69 6:23.87
6:25.31   7:29.60   5:16.69
初赛7 7:33.30
7:33.30
赛事轮次排名最好平均详情
Kumaraguru Cube Open 2025决赛5 2:52.66 DNF
2:52.66   DNF       DNF
初赛10 3:46.57 DNF
3:46.57   4:07.08   DNF
Kumaraguru Cube Open 2023决赛5 2:49.39 DNF
DNF       2:49.39   DNF
初赛8 4:14.43 DNF
DNF       DNF       4:14.43
赛事轮次排名最好平均详情
Kumaraguru Cube Open 2023决赛14 60
60
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026决赛5 16.56 17.32
19.92     18.03     16.56     17.14     16.78
Cubing Comes to Madurai 2025决赛4 13.31 17.33
16.36     19.08     18.38     13.31     17.25
Kumaraguru Cube Open 2023决赛5 14.54 18.81
18.79     14.54     22.57     22.13     15.51
复赛5 18.04 19.25
18.04     20.01     19.67     18.07     21.00
初赛3 14.96 17.82
20.30     14.96     17.10     22.82     16.06
NIT Trichy Open 2017初赛15 28.58 32.05
28.58     34.28     34.02     29.01     33.11
赛事轮次排名最好平均详情
Cubing Hunt at Coimbatore 2026决赛14 17.46 21.71
24.50     18.86     21.76     17.46     44.71
Kumaraguru Cube Open 2023初赛16 26.25 30.33
26.25     28.63     30.17     32.19     DNF
赛事轮次排名最好平均详情
Cubing Hunt at Coimbatore 2026决赛15 1:46.92
1:46.92   1:52.15
Kumaraguru Cube Open 2025决赛15 1:46.02 1:56.24
1:46.02   1:51.16   2:04.86   2:00.44   1:57.13
Kumaraguru Cube Open 2023决赛10 1:29.81 1:42.70
1:47.49   1:29.81   1:51.18   1:36.87   1:43.74
初赛8 1:27.31 1:42.69
1:47.57   1:46.87   1:34.25   1:27.31   1:46.94
Ban Parity Open 2017决赛10 3:00.90 3:32.36
3:20.12   3:00.90   3:40.04   3:36.92   3:45.47
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026初赛16 5.68 9.05
8.62      9.74      12.47     8.78      5.68
Kumaraguru Cube Open 2025初赛22 6.69 9.57
9.98      6.69      12.08     10.55     8.19
Cubing Comes to Madurai 2025决赛25 5.56 9.83
12.50     8.02      8.97      14.07     5.56
Kumaraguru Cube Open 2023复赛23 8.65 9.94
11.11     8.71      10.90     8.65      10.21
初赛16 6.24 8.06
9.14      10.49     8.54      6.51      6.24
KCT Matrix Cube Open 2022决赛8 6.16 8.58
13.40     7.44      6.16      10.58     7.71
VSVN Cube Open 2019决赛15 7.86 10.76
12.57     10.01     16.00     9.69      7.86
VDCA Winter Open 2019初赛14 9.22 11.70
12.91     12.05     9.22      11.72     11.33
Virudhunagar KCET Cube Open 2018决赛7 9.56 10.81
13.85     10.12     10.59     9.56      11.73
初赛9 5.61 12.33
5.61      16.49     11.70     10.92     14.36
NIT Trichy Open 2017复赛12 9.58 11.20
9.73      12.66     11.83     9.58      12.05
初赛12 7.61 11.42
12.18     12.27     9.81      12.68     7.61
赛事轮次排名最好平均详情
Cubing at Sri Eshwar 2026决赛5 4.95 6.40
6.31      6.31      6.57      4.95      9.25
Kumaraguru Cube Open 2025决赛5 5.13 6.06
6.05      6.62      6.05      6.09      5.13
初赛8 5.21 7.60
8.38      10.95     5.21      8.03      6.38
Cubing Comes to Madurai 2025决赛7 4.63 7.42
5.45      12.22     6.65      10.17     4.63
初赛4 5.66 5.87
5.72      5.86      6.03      6.50      5.66
Kumaraguru Cube Open 2023决赛2 4.26 6.08
4.26      6.84      7.12      5.19      6.22
初赛4 5.32 6.16
7.17      5.68      5.32      8.79      5.64
VSVN Cube Open 2019决赛4 6.08 6.62
11.75     7.02      6.40      6.45      6.08
VDCA Winter Open 2019决赛5 7.80 8.69
8.29      9.16      8.62      DNF       7.80
初赛2 5.97 7.46
7.21      7.41      7.94      7.76      5.97
Virudhunagar KCET Cube Open 2018决赛5 10.58 13.09
14.53     13.19     11.55     10.58     24.93
NIT Trichy Open 2017初赛14 14.73 15.76
14.91     16.15     18.20     16.23     14.73
赛事轮次排名最好平均详情
Kumaraguru Cube Open 2025初赛10 35.67 40.50
41.59     35.67     46.25     41.36     38.56
Kumaraguru Cube Open 2023决赛11 34.12 52.65
50.43     46.92     34.12     1:07.21   1:00.60
初赛8 36.96 45.17
55.16     57.81     43.24     37.12     36.96
KCT Matrix Cube Open 2022决赛5 26.94 30.80
26.94     28.57     29.04     DNF       34.78
赛事轮次排名最好平均详情
Kumaraguru Cube Open 2023决赛3 DNF
DNF
Cubing at Sri Eshwar 2026
项目轮次排名最好平均详情
三阶决赛7 8.51 10.28
10.25     8.51      11.91     10.11     10.48
初赛5 8.56 9.31
13.21     8.57      9.46      8.56      9.91
四阶决赛7 33.21 37.51
33.21     38.37     47.33     37.82     36.33
六阶决赛4 2:32.47 2:39.09
2:32.47   2:45.75   2:39.04
单手决赛5 16.56 17.32
19.92     18.03     16.56     17.14     16.78
金字塔初赛16 5.68 9.05
8.62      9.74      12.47     8.78      5.68
斜转决赛5 4.95 6.40
6.31      6.31      6.57      4.95      9.25
 
Cubing Hunt at Coimbatore 2026
项目轮次排名最好平均详情
三阶决赛5 8.86 10.38
8.86      10.61     11.47     11.04     9.48
初赛9 10.44 10.96
11.29     10.85     10.74     11.41     10.44
二阶决赛6 2.95 3.59
3.36      2.95      3.69      5.29      3.73
初赛7 3.16 3.56
3.64      3.16      3.43      4.55      3.60
五阶决赛4 1:08.54 1:15.35
1:08.54   1:12.28   1:14.43   1:25.92   1:19.33
七阶决赛3 3:29.58 3:44.61
3:29.58   4:01.81   3:42.45
魔表决赛14 17.46 21.71
24.50     18.86     21.76     17.46     44.71
五魔方决赛15 1:46.92
1:46.92   1:52.15
 
Kumaraguru Cube Open 2025
项目轮次排名最好平均详情
三阶决赛8 9.73 11.34
9.73      10.78     12.20     11.39     11.86
复赛8 10.08 11.28
18.31     12.81     10.08     10.52     10.51
初赛6 8.34 10.96
9.37      10.87     8.34      16.01     12.64
二阶决赛3 2.30 2.87
2.33      2.30      3.06      3.77      3.21
初赛3 2.32 3.12
2.74      3.36      3.33      2.32      3.29
四阶决赛2 32.63 35.59
35.32     32.63     39.16     38.03     33.43
初赛5 32.50 36.27
33.35     32.50     38.49     36.98     41.21
五阶决赛5 1:13.56 1:16.95
1:17.43   1:17.79   1:15.64   1:13.56   1:23.16
六阶决赛4 2:34.21 2:54.80
3:31.47   2:34.21   2:38.73
七阶决赛2 3:31.16 3:45.27
3:31.16   3:47.24   3:57.41
三盲决赛5 2:52.66 DNF
2:52.66   DNF       DNF
初赛10 3:46.57 DNF
3:46.57   4:07.08   DNF
五魔方决赛15 1:46.02 1:56.24
1:46.02   1:51.16   2:04.86   2:00.44   1:57.13
金字塔初赛22 6.69 9.57
9.98      6.69      12.08     10.55     8.19
斜转决赛5 5.13 6.06
6.05      6.62      6.05      6.09      5.13
初赛8 5.21 7.60
8.38      10.95     5.21      8.03      6.38
SQ1初赛10 35.67 40.50
41.59     35.67     46.25     41.36     38.56
 
Cubing Comes to Madurai 2025
项目轮次排名最好平均详情
三阶决赛15 9.01 11.92
12.54     12.52     12.78     9.01      10.69
初赛7 8.29 10.65
9.06      11.29     11.59     13.74     8.29
二阶决赛2 2.41 2.74
2.54      2.99      2.69      2.41      3.23
初赛8 1.13 3.41
2.98      4.23      3.01      5.59      1.13
单手决赛4 13.31 17.33
16.36     19.08     18.38     13.31     17.25
金字塔决赛25 5.56 9.83
12.50     8.02      8.97      14.07     5.56
斜转决赛7 4.63 7.42
5.45      12.22     6.65      10.17     4.63
初赛4 5.66 5.87
5.72      5.86      6.03      6.50      5.66
 
Kumaraguru Cube Open 2023
项目轮次排名最好平均详情
三阶决赛5 8.56 10.85
9.88      10.90     11.76     12.72     8.56
复赛6 8.70 10.30
8.70      12.51     9.81      9.29      11.81
初赛3 8.83 10.19
11.15     10.35     10.13     10.09     8.83
二阶决赛5 3.03 4.14
6.02      3.76      3.36      5.30      3.03
复赛2 2.28 3.65
2.28      3.09      DNF       3.55      4.30
初赛1 2.27 2.93
3.18      4.69      3.01      2.27      2.61
四阶决赛3 32.68 40.28
40.31     DNF       42.36     32.68     38.18
初赛2 36.33 39.29
43.01     38.38     36.49     44.35     36.33
五阶决赛5 1:24.49 1:29.48
1:24.49   1:28.50   1:30.59   1:29.36   1:34.22
初赛5 1:18.16 1:25.20
1:22.14   1:26.86   1:30.96   1:26.61   1:18.16
六阶决赛3 2:31.49 2:56.77
2:54.39   3:24.44   2:31.49
初赛4 2:36.29 2:49.10
2:46.35   3:04.66   2:36.29
七阶决赛5 5:16.69 6:23.87
6:25.31   7:29.60   5:16.69
初赛7 7:33.30
7:33.30
三盲决赛5 2:49.39 DNF
DNF       2:49.39   DNF
初赛8 4:14.43 DNF
DNF       DNF       4:14.43
最少步决赛14 60
60
单手决赛5 14.54 18.81
18.79     14.54     22.57     22.13     15.51
复赛5 18.04 19.25
18.04     20.01     19.67     18.07     21.00
初赛3 14.96 17.82
20.30     14.96     17.10     22.82     16.06
魔表初赛16 26.25 30.33
26.25     28.63     30.17     32.19     DNF
五魔方决赛10 1:29.81 1:42.70
1:47.49   1:29.81   1:51.18   1:36.87   1:43.74
初赛8 1:27.31 1:42.69
1:47.57   1:46.87   1:34.25   1:27.31   1:46.94
金字塔复赛23 8.65 9.94
11.11     8.71      10.90     8.65      10.21
初赛16 6.24 8.06
9.14      10.49     8.54      6.51      6.24
斜转决赛2 4.26 6.08
4.26      6.84      7.12      5.19      6.22
初赛4 5.32 6.16
7.17      5.68      5.32      8.79      5.64
SQ1决赛11 34.12 52.65
50.43     46.92     34.12     1:07.21   1:00.60
初赛8 36.96 45.17
55.16     57.81     43.24     37.12     36.96
多盲决赛3 DNF
DNF
 
KCT Matrix Cube Open 2022
项目轮次排名最好平均详情
三阶决赛7 10.72 11.55
11.48     11.12     10.72     12.06     14.18
初赛2 9.28 10.37
9.87      9.28      11.28     11.04     10.20
二阶决赛1 3.09 3.59
3.09      3.34      3.83      3.80      3.62
四阶决赛1 31.21 36.58
31.21     35.88     38.74     35.11     43.86
五阶决赛4 1:14.77 1:23.90
1:30.91   1:21.52   1:14.77   1:37.45   1:19.28
金字塔决赛8 6.16 8.58
13.40     7.44      6.16      10.58     7.71
SQ1决赛5 26.94 30.80
26.94     28.57     29.04     DNF       34.78
 
VSVN Cube Open 2019
项目轮次排名最好平均详情
三阶决赛7 13.70 15.14
16.05     15.65     13.70     13.71     17.01
初赛5 11.40 13.48
12.85     11.40     13.16     15.00     14.43
二阶决赛3 2.85 4.08
8.01      3.98      3.82      2.85      4.43
初赛3 3.19 3.68
3.78      3.82      7.14      3.45      3.19
金字塔决赛15 7.86 10.76
12.57     10.01     16.00     9.69      7.86
斜转决赛4 6.08 6.62
11.75     7.02      6.40      6.45      6.08
 
VDCA Winter Open 2019
项目轮次排名最好平均详情
三阶决赛6 13.14 14.90
14.29     15.81     16.37     13.14     14.61
初赛7 13.66 15.52
15.89     15.84     13.66     15.67     15.04
二阶决赛2 2.38 4.03
4.25      3.85      4.29      2.38      3.98
初赛2 3.55 4.23
4.93      10.40     3.55      3.98      3.79
金字塔初赛14 9.22 11.70
12.91     12.05     9.22      11.72     11.33
斜转决赛5 7.80 8.69
8.29      9.16      8.62      DNF       7.80
初赛2 5.97 7.46
7.21      7.41      7.94      7.76      5.97
 
Virudhunagar KCET Cube Open 2018
项目轮次排名最好平均详情
三阶决赛4 12.75 15.81
13.90     12.75     18.55     17.59     15.93
初赛3 14.75 15.47
19.18     15.59     15.71     14.75     15.12
二阶决赛6 4.85 5.58
6.66      6.06      5.37      5.31      4.85
四阶决赛3 59.72 1:09.28
1:26.59   1:12.70   1:08.60   59.72     1:06.55
金字塔决赛7 9.56 10.81
13.85     10.12     10.59     9.56      11.73
初赛9 5.61 12.33
5.61      16.49     11.70     10.92     14.36
斜转决赛5 10.58 13.09
14.53     13.19     11.55     10.58     24.93
 
NIT Trichy Open 2017
项目轮次排名最好平均详情
三阶复赛19 17.09 18.31
17.63     18.66     17.09     18.65     20.01
初赛20 13.34 18.08
17.45     17.56     24.93     13.34     19.22
二阶复赛11 4.77 5.57
5.07      4.77      4.98      DNF       6.65
初赛15 4.77 6.27
4.77      6.16      5.89      6.77      9.77
四阶初赛17 1:20.51 1:35.66
1:26.91   1:20.51   1:43.72   1:36.94   1:43.14
单手初赛15 28.58 32.05
28.58     34.28     34.02     29.01     33.11
金字塔复赛12 9.58 11.20
9.73      12.66     11.83     9.58      12.05
初赛12 7.61 11.42
12.18     12.27     9.81      12.68     7.61
斜转初赛14 14.73 15.76
14.91     16.15     18.20     16.23     14.73
 
Ban Parity Open 2017
项目轮次排名最好平均详情
三阶复赛25 15.65 20.93
21.19     18.53     23.35     23.07     15.65
初赛21 17.40 19.47
22.31     20.86     17.97     17.40     19.57
二阶复赛18 6.88 8.44
8.24      8.90      8.17      8.95      6.88
初赛10 4.24 5.50
4.65      9.38      4.24      6.79      5.06
五魔方决赛10 3:00.90 3:32.36
3:20.12   3:00.90   3:40.04   3:36.92   3:45.47
No.日期比赛名称地区城市
112026-07-26Cubing at Sri Eshwar 2026印度Coimbatore, Tamil Nadu
102026-07-25Cubing Hunt at Coimbatore 2026印度Coimbatore, Tamil Nadu
92025-10-11~12Kumaraguru Cube Open 2025印度Coimbatore, Tamil Nadu
82025-04-20Cubing Comes to Madurai 2025印度Madurai, Tamil Nadu
72023-09-30~10-02Kumaraguru Cube Open 2023印度Coimbatore, Tamil Nadu
62022-07-31KCT Matrix Cube Open 2022印度Coimbatore, Tamil Nadu
52019-11-17VSVN Cube Open 2019印度Virudunagar, Tamil Nadu
42019-01-13VDCA Winter Open 2019印度Virudunagar, Tamil Nadu
32018-07-14Virudhunagar KCET Cube Open 2018印度Virudunagar, Tamil Nadu
22017-10-07~08NIT Trichy Open 2017印度Tiruchirappalli, Tamil Nadu
12017-04-08~09Ban Parity Open 2017印度Tiruchirappalli, Tamil Nadu