From
To
Date
Thu, Feb 5

Authorised IRCTC partner

Lingampalli To Koduru Trains

Popular Trains from Lingampalli to Koduru

24 found from BMO, CHZ, LPI, SC, KCG, HYB, VKB to KOU, VKI, PIL, RU, GDR, RJP, TPTY

Train name and numberStarting stationDurationEnding station

17418 - SNSI TPTY EXP

Runs onMTWTFSS

09:45 AM

LPI

Lingampalli

11h 9m

408 KM

34 stops

08:54 PM

KOU

Koduru

Starting from ₹365

12794 - RAYALASEEMA SF

Runs onMTWTFSS

05:55 PM

LPI

Lingampalli

10h 24m

408 KM

28 stops

04:19 AM

KOU

Koduru

Starting from ₹395

12797 - VENKATADRI SF

Runs onMTWTFSS

08:05 PM

KCG

Hyderabad

18 KM from LPI

9h 24m

394 KM

21 stops

05:29 AM

KOU

Koduru

Starting from ₹370

12732 - SC TPTY SF EXP

Runs onMTWTFSS

04:50 PM

LPI

Lingampalli

13h 35m

444 KM

16 stops

06:25 AM

TPTY

Tirupati

36 KM from KOU

17653 - KCG PDY EXPRESS

Runs onMTWTFSS

05:00 PM

KCG

Hyderabad

18 KM from LPI

9h 18m

364 KM

25 stops

02:18 AM

RJP

Razampeta

33 KM from KOU

12766 - AMI TPTY EXP

Runs onMTWTFSS

05:30 PM

KCG

Hyderabad

18 KM from LPI

12h 55m

430 KM

24 stops

06:25 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹415

17406 - KRISHNA EXPRESS

Runs onMTWTFSS

04:40 AM

BMO

Bolarum

21 KM from LPI

15h 9m

415 KM

58 stops

07:49 PM

VKI

Venkatagiri

27 KM from KOU

12734 - NARAYANADRI SF

Runs onMTWTFSS

05:30 PM

LPI

Lingampalli

10h 39m

416 KM

22 stops

04:09 AM

VKI

Venkatagiri

27 KM from KOU

Starting from ₹385

12770 - SEVEN HILLS SF

Runs onMTWTFSS

05:55 PM

KCG

Hyderabad

18 KM from LPI

12h 30m

430 KM

17 stops

06:25 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹1090

12789 - KCG MRDW SF EXP

Runs onMTWTFSS

06:05 AM

KCG

Hyderabad

18 KM from LPI

10h 35m

432 KM

36 stops

04:40 PM

RU

Tirupati

38 KM from KOU

Starting from ₹385

17652 - KCG CGL EXPRESS

Runs onMTWTFSS

05:00 PM

KCG

Hyderabad

18 KM from LPI

9h 49m

394 KM

23 stops

02:49 AM

KOU

Koduru

Starting from ₹440

12708 - NZM TPTY SF EXP

Runs onMTWTFSS

08:55 AM

KCG

Hyderabad

18 KM from LPI

9h 48m

364 KM

22 stops

06:43 PM

RJP

Razampeta

33 KM from KOU

12760 - CHARMINAR SF EX

Runs onMTWTFSS

06:00 PM

HYB

Hyderabad

18 KM from LPI

10h 18m

389 KM

17 stops

04:18 AM

GDR

Gudur

58 KM from KOU

Starting from ₹395

12764 - PADMAVATHI SF

Runs onMTWTFSS

06:40 PM

SC

Hyderabad

20 KM from LPI

10h 29m

405 KM

19 stops

05:09 AM

VKI

Venkatagiri

27 KM from KOU

Starting from ₹405

12710 - SIMHAPURI SF EXP

Runs onMTWTFSS

10:05 PM

SC

Hyderabad

20 KM from LPI

10h 50m

392 KM

16 stops

08:55 AM

GDR

Gudur

58 KM from KOU

Starting from ₹390

20701 - TPTY VANDEBHARAT

Runs onMTWTFSS

06:10 AM

SC

Hyderabad

20 KM from LPI

8h 24m

434 KM

7 stops

02:35 PM

TPTY

Tirupati

36 KM from KOU

Starting from ₹1340

16004 - NSL MAS WKLY EXP

Runs onMTWTFSS

01:10 AM

KCG

Hyderabad

18 KM from LPI

9h 53m

364 KM

27 stops

11:03 AM

RJP

Razampeta

33 KM from KOU

Starting from ₹325

16353 - KCG NCJ EXP

Runs onMTWTFSS

03:45 PM

KCG

Hyderabad

18 KM from LPI

11h 15m

430 KM

28 stops

03:00 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹360

22715 - KCG MDU SF EXP

Runs onMTWTFSS

06:05 AM

KCG

Hyderabad

18 KM from LPI

9h 43m

417 KM

23 stops

03:48 PM

PIL

Piler

55 KM from KOU

Starting from ₹385

16734 - OKHA RMM EXP

Runs onMTWTFSS

05:30 PM

KCG

Hyderabad

18 KM from LPI

11h 25m

430 KM

48 stops

04:55 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹360

17230 - SABARI EXPRESS

Runs onMTWTFSS

12:20 PM

SC

Hyderabad

20 KM from LPI

11h 40m

434 KM

42 stops

12:00 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹1315

12604 - CHENNAI SF EXP

Runs onMTWTFSS

05:25 PM

CHZ

Charlapalli

30 KM from LPI

9h 38m

391 KM

19 stops

03:03 AM

GDR

Gudur

58 KM from KOU

22706 - TPTY HAMSAFAR

Runs onMTWTFSS

06:05 PM

SC

Hyderabad

20 KM from LPI

12h 35m

434 KM

14 stops

06:40 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹1275

17621 - CPSN TPTY EXP

Runs onMTWTFSS

07:00 AM

VKB

Vikarabad

46 KM from LPI

13h 30m

443 KM

26 stops

08:30 PM

TPTY

Tirupati

36 KM from KOU

Starting from ₹365

Covid Special Trains from Lingampalli to Koduru

63 found from CHZ, LPI, SC, KCG, MLY, HYB, VKB to KOU, VKI, TCNR, PIL, RU, RJP, TPTY

Train name and numberStarting stationDurationEnding station

07211 - HYB TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 8m

364 KM

18 stops

07:38 AM

RJP

Razampeta

33 KM from KOU

07133 - KCG KTYM SPL

Runs onMTWTFSS

03:40 PM

KCG

Hyderabad

18 KM from LPI

9h 18m

364 KM

26 stops

12:58 AM

RJP

Razampeta

33 KM from KOU

07151 - KCG KTYM SPL

Runs onMTWTFSS

03:40 PM

KCG

Hyderabad

18 KM from LPI

9h 18m

364 KM

26 stops

12:58 AM

RJP

Razampeta

33 KM from KOU

07017 - CHZ TPTY SPL

Runs onMTWTFSS

10:40 PM

KCG

Hyderabad

18 KM from LPI

9h 23m

364 KM

19 stops

08:03 AM

RJP

Razampeta

33 KM from KOU

07795 - KCG TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 28m

364 KM

16 stops

07:58 AM

RJP

Razampeta

33 KM from KOU

07797 - KCG TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 28m

364 KM

16 stops

07:58 AM

RJP

Razampeta

33 KM from KOU

07423 - KCG TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 28m

364 KM

16 stops

07:58 AM

RJP

Razampeta

33 KM from KOU

07063 - KCG TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 30m

364 KM

15 stops

08:00 AM

RJP

Razampeta

33 KM from KOU

07074 - SC TPTY SPL

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

9h 30m

364 KM

16 stops

08:00 AM

RJP

Razampeta

33 KM from KOU

07044 - KCG QLN SPL

Runs onMTWTFSS

04:00 PM

KCG

Hyderabad

18 KM from LPI

9h 39m

364 KM

35 stops

01:39 AM

RJP

Razampeta

33 KM from KOU

07297 - KCG TPTY SPL

Runs onMTWTFSS

10:20 PM

KCG

Hyderabad

18 KM from LPI

9h 54m

364 KM

16 stops

08:14 AM

RJP

Razampeta

33 KM from KOU

07031 - CHZ TPTY SPL

Runs onMTWTFSS

04:40 PM

KCG

Hyderabad

18 KM from LPI

9h 59m

364 KM

18 stops

02:39 AM

RJP

Razampeta

33 KM from KOU

07251 - CHZ TPTY SPL

Runs onMTWTFSS

06:55 PM

CHZ

Charlapalli

30 KM from LPI

10h 14m

405 KM

17 stops

05:09 AM

VKI

Venkatagiri

27 KM from KOU

07135 - HYB KTYM SPL

Runs onMTWTFSS

01:05 PM

LPI

Lingampalli

10h 18m

377 KM

29 stops

11:23 PM

RJP

Razampeta

33 KM from KOU

07065 - HYB KTYM SPL

Runs onMTWTFSS

01:05 PM

LPI

Lingampalli

10h 18m

377 KM

29 stops

11:23 PM

RJP

Razampeta

33 KM from KOU

07588 - SC TPTY SPL

Runs onMTWTFSS

06:50 PM

LPI

Lingampalli

10h 42m

408 KM

18 stops

05:32 AM

KOU

Koduru

07149 - MLY QLN SPL

Runs onMTWTFSS

06:55 PM

MLY

Hyderabad

25 KM from LPI

10h 45m

435 KM

32 stops

05:40 AM

RU

Tirupati

38 KM from KOU

07193 - MLY QLN SPL

Runs onMTWTFSS

06:55 PM

MLY

Hyderabad

25 KM from LPI

10h 45m

435 KM

30 stops

05:40 AM

RU

Tirupati

38 KM from KOU

07052 - RXL TPTY SPL

Runs onMTWTFSS

05:25 AM

LPI

Lingampalli

10h 50m

377 KM

46 stops

04:15 PM

RJP

Razampeta

33 KM from KOU

07718 - HSR TPTY SPL

Runs onMTWTFSS

10:35 PM

KCG

Hyderabad

18 KM from LPI

10h 50m

364 KM

54 stops

09:25 AM

RJP

Razampeta

33 KM from KOU

07418 - NSL TPTY SPL

Runs onMTWTFSS

09:45 AM

LPI

Lingampalli

10h 54m

408 KM

31 stops

08:39 PM

KOU

Koduru

07639 - NED TPTY SPL

Runs onMTWTFSS

09:00 PM

SC

Hyderabad

20 KM from LPI

11h

434 KM

19 stops

08:00 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹475

07199 - SC QLN SPL

Runs onMTWTFSS

06:40 PM

SC

Hyderabad

20 KM from LPI

11h 20m

435 KM

30 stops

06:00 AM

RU

Tirupati

38 KM from KOU

07171 - MLY QLN SPL

Runs onMTWTFSS

06:45 PM

MLY

Hyderabad

25 KM from LPI

11h 20m

435 KM

34 stops

06:05 AM

RU

Tirupati

38 KM from KOU

07141 - MLY QLN SPL

Runs onMTWTFSS

04:17 PM

LPI

Lingampalli

11h 31m

377 KM

35 stops

03:48 AM

RJP

Razampeta

33 KM from KOU

07191 - KCG MDU SPL

Runs onMTWTFSS

08:30 PM

KCG

Hyderabad

18 KM from LPI

11h 33m

417 KM

31 stops

08:03 AM

PIL

Piler

55 KM from KOU

07489 - SC TPTY EXP

Runs onMTWTFSS

10:30 PM

KCG

Hyderabad

18 KM from LPI

11h 40m

430 KM

15 stops

10:10 AM

TPTY

Tirupati

36 KM from KOU

06302 - DWK MDU SPL

Runs onMTWTFSS

11:20 AM

KCG

Hyderabad

18 KM from LPI

11h 50m

432 KM

19 stops

11:10 PM

RU

Tirupati

38 KM from KOU

Starting from ₹455

07163 - HYB KTYM SPL

Runs onMTWTFSS

02:10 PM

LPI

Lingampalli

11h 59m

429 KM

30 stops

02:09 AM

PIL

Piler

55 KM from KOU

07462 - KCG TPTY SPL

Runs onMTWTFSS

03:45 PM

KCG

Hyderabad

18 KM from LPI

12h

430 KM

14 stops

03:45 AM

TPTY

Tirupati

36 KM from KOU

07584 - SC TPTY SPL

Runs onMTWTFSS

06:40 PM

SC

Hyderabad

20 KM from LPI

12h 5m

434 KM

13 stops

06:45 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹510

07175 - SC QLN SPL

Runs onMTWTFSS

08:00 PM

SC

Hyderabad

20 KM from LPI

12h 5m

435 KM

35 stops

08:05 AM

RU

Tirupati

38 KM from KOU

07415 - NED VM SPL

Runs onMTWTFSS

07:12 PM

LPI

Lingampalli

12h 18m

446 KM

28 stops

07:30 AM

RU

Tirupati

38 KM from KOU

02764 - CHZ TPTY SPL

Runs onMTWTFSS

06:55 PM

CHZ

Charlapalli

30 KM from LPI

12h 20m

434 KM

15 stops

07:15 AM

TPTY

Tirupati

36 KM from KOU

07509 - SC TPTY SUMRSPL

Runs onMTWTFSS

08:00 PM

SC

Hyderabad

20 KM from LPI

12h 20m

434 KM

14 stops

08:20 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹475

07435 - Kacheguda - Nagercoil Weekly Special Fare Special

Runs onMTWTFSS

07:45 PM

KCG

Hyderabad

18 KM from LPI

12h 20m

432 KM

27 stops

08:05 AM

RU

Tirupati

38 KM from KOU

Starting from ₹470

07469 - HYB TPTY SPL

Runs onMTWTFSS

07:45 PM

HYB

Hyderabad

18 KM from LPI

12h 35m

430 KM

15 stops

08:20 AM

TPTY

Tirupati

36 KM from KOU

07606 - AK TPTY SF SPL

Runs onMTWTFSS

05:50 PM

KCG

Hyderabad

18 KM from LPI

12h 35m

430 KM

23 stops

06:25 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹525

07541 - HYB TPTY SPL

Runs onMTWTFSS

07:45 PM

HYB

Hyderabad

18 KM from LPI

12h 35m

430 KM

15 stops

08:20 AM

TPTY

Tirupati

36 KM from KOU

07601 - J TCNR SPL

Runs onMTWTFSS

05:20 AM

VKB

Vikarabad

46 KM from LPI

12h 35m

443 KM

30 stops

05:55 PM

TPTY

Tirupati

36 KM from KOU

06182 - JP CBE SPECIAL

Runs onMTWTFSS

09:15 AM

KCG

Hyderabad

18 KM from LPI

12h 35m

432 KM

44 stops

09:50 PM

RU

Tirupati

38 KM from KOU

07167 - MLY KTYM SPL

Runs onMTWTFSS

02:30 PM

MLY

Hyderabad

25 KM from LPI

12h 50m

435 KM

25 stops

03:20 AM

RU

Tirupati

38 KM from KOU

07424 - KCG VM SPL

Runs onMTWTFSS

07:02 PM

LPI

Lingampalli

12h 53m

446 KM

23 stops

07:55 AM

RU

Tirupati

38 KM from KOU

07082 - KCG TPTY SPL

Runs onMTWTFSS

05:50 PM

KCG

Hyderabad

18 KM from LPI

12h 55m

430 KM

16 stops

06:45 AM

TPTY

Tirupati

36 KM from KOU

07607 - PAU TPTY SPL

Runs onMTWTFSS

06:50 PM

SC

Hyderabad

20 KM from LPI

13h

434 KM

22 stops

07:50 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹475

07125 - SC VLNK SPL

Runs onMTWTFSS

08:00 PM

SC

Hyderabad

20 KM from LPI

13h

435 KM

24 stops

09:00 AM

RU

Tirupati

38 KM from KOU

Starting from ₹1275

07120 - MDJN TPTY SPL

Runs onMTWTFSS

09:40 AM

KCG

Hyderabad

18 KM from LPI

13h 20m

430 KM

34 stops

11:00 PM

TPTY

Tirupati

36 KM from KOU

07127 - SC VLNK SPL

Runs onMTWTFSS

08:25 AM

SC

Hyderabad

20 KM from LPI

13h 55m

435 KM

25 stops

10:20 PM

RU

Tirupati

38 KM from KOU

Starting from ₹460

07655 - KCG TPTY SPL

Runs onMTWTFSS

05:30 PM

KCG

Hyderabad

18 KM from LPI

14h

430 KM

18 stops

07:30 AM

TPTY

Tirupati

36 KM from KOU

07473 - KCG TPTY SPL

Runs onMTWTFSS

05:20 PM

KCG

Hyderabad

18 KM from LPI

14h

430 KM

17 stops

07:20 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹515

09520 - OKHA MDU SPL

Runs onMTWTFSS

09:10 AM

KCG

Hyderabad

18 KM from LPI

14h

432 KM

49 stops

11:10 PM

RU

Tirupati

38 KM from KOU

Starting from ₹455

07483 - KCG TPTY SPL

Runs onMTWTFSS

07:25 PM

KCG

Hyderabad

18 KM from LPI

14h 5m

430 KM

15 stops

09:30 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹460

07121 - CHZ QLN SPL

Runs onMTWTFSS

11:15 AM

CHZ

Charlapalli

30 KM from LPI

14h 5m

434 KM

31 stops

01:20 AM

TPTY

Tirupati

36 KM from KOU

07230 - HYB CAPE SPL

Runs onMTWTFSS

05:20 PM

HYB

Hyderabad

18 KM from LPI

14h 10m

430 KM

36 stops

07:30 AM

TPTY

Tirupati

36 KM from KOU

07695 - Charlapalli - Rameswaram Special Fare Special

Runs onMTWTFSS

04:45 PM

CHZ

Charlapalli

30 KM from LPI

14h 20m

434 KM

33 stops

07:05 AM

TPTY

Tirupati

36 KM from KOU

07131 - KCG KTYM SPL

Runs onMTWTFSS

12:30 PM

KCG

Hyderabad

18 KM from LPI

14h 50m

432 KM

27 stops

03:20 AM

RU

Tirupati

38 KM from KOU

07169 - KCG KTYM SPL

Runs onMTWTFSS

12:30 PM

KCG

Hyderabad

18 KM from LPI

14h 50m

432 KM

27 stops

03:20 AM

RU

Tirupati

38 KM from KOU

07638 - SNSI TPTY SPL

Runs onMTWTFSS

10:25 AM

LPI

Lingampalli

15h 5m

444 KM

31 stops

01:30 AM

TPTY

Tirupati

36 KM from KOU

Starting from ₹485

07143 - MLY QLN SPL

Runs onMTWTFSS

11:30 AM

MLY

Hyderabad

25 KM from LPI

15h 10m

435 KM

34 stops

02:40 AM

RU

Tirupati

38 KM from KOU

07137 - HYB KTYM SPL

Runs onMTWTFSS

12:05 PM

HYB

Hyderabad

18 KM from LPI

15h 15m

432 KM

27 stops

03:20 AM

RU

Tirupati

38 KM from KOU

07609 - J TPTY SPL

Runs onMTWTFSS

07:20 PM

LPI

Lingampalli

15h 25m

445 KM

28 stops

10:45 AM

TCNR

Tiruchanur

37 KM from KOU

07032 - PVR TPTY SPL

Runs onMTWTFSS

05:40 AM

LPI

Lingampalli

16h 49m

444 KM

30 stops

10:30 PM

TPTY

Tirupati

36 KM from KOU

07426 - SNSI TPTY SPL

Runs onMTWTFSS

03:00 PM

LPI

Lingampalli

17h 30m

444 KM

31 stops

08:30 AM

TPTY

Tirupati

36 KM from KOU

Other Trains from Lingampalli to Koduru

1 found from KCG to PAK

Train name and numberStarting stationDurationEnding station

17615 - KCG MDU EXPRESS

Runs onMTWTFSS

06:05 AM

KCG

Hyderabad

18 KM from LPI

11h 15m

443 KM

21 stops

05:20 PM

PAK

Pakala

60 KM from KOU

Starting from ₹370

Trains from Koduru to Lingampalli

Trains originating from Lingampalli

Train name and numberStarting stationDurationEnding station

17016 - VISAKHA EXP

04:50 PM

SC

Hyderabad

23h 35m

42 stops

04:25 PM

BBSN

07165 - HYB BBSN SPL

05:30 PM

HYB

Hyderabad

23h 45m

26 stops

05:15 PM

BBSN

07583 - KCG-MBNR PASS

01:20 PM

KCG

Hyderabad

2h 30m

86 KM

16 stops

03:50 PM

MBNR

Mahbubnagar

17010 - SC-BIDR-INTER CITY EXP

06:30 PM

SC

Hyderabad

3h 45m

117 KM

10 stops

10:15 PM

BIDR

Bidar

57601 - FM WADI PASS

05:00 AM

FM

Falaknuma

6h 30m

160 KM

31 stops

11:30 AM

WADI

Wadi

Trains passing through Lingampalli

Train name and numberStarting stationDurationEnding station

11019 - KONARK EXPRESS

02:00 PM

CSMT

Mumbai

1d 10h 20m

44 stops

12:20 AM

BBSN

11020 - KONARK EXPRESS

02:40 PM

BBSN

1d 13h 35m

44 stops

04:15 AM

CSMT

Mumbai

17622 - TPTY CPSN EXP

10:55 PM

TPTY

Tirupati

23h 45m

26 stops

10:40 PM

CPSN

19301 - DADN YPR EXP

08:00 PM

DADN

Delhi

1d 15h 25m

32 stops

11:25 AM

YPR

Bangalore

19302 - YPR DADN EXP

03:45 PM

YPR

Bangalore

1d 15h 20m

32 stops

07:05 AM

DADN

Delhi

Trains reaching to Koduru

Train name and numberStarting stationDurationEnding station

07590 - KRYP TPTY EXP

02:45 PM

KRYP

Kadridevarpalli

12h 53m

38 stops

03:38 AM

TPTY

Tirupati

57478 - Kadiridevarapalli - Tirupati Passenger

01:25 PM

KRYP

Kadridevarpalli

16h 55m

44 stops

06:20 AM

TPTY

Tirupati

57406 - KRYP TPTY PAS

02:20 PM

KRYP

Kadridevarpalli

12h 50m

38 stops

03:10 AM

TPTY

Tirupati

16057 - SAPTHAGIRI EXP

06:30 AM

MAS

Chennai

3h 20m

109 KM

9 stops

09:50 AM

TPTY

Tirupati

16053 - MAS TPTY EXP

02:40 PM

MAS

Chennai

3h 10m

109 KM

8 stops

05:50 PM

TPTY

Tirupati

Trains passing through Koduru

Train name and numberStarting stationDurationEnding station

12511 - RAPTISAGAR EXP

06:33 AM

GKP

Gorakhpur

2d 9h 7m

60 stops

03:40 PM

TVCN

12512 - RAPTISAGAR EXP

06:35 AM

TVCN

2d 8h 40m

59 stops

03:15 PM

GKP

Gorakhpur

17622 - TPTY CPSN EXP

10:55 PM

TPTY

Tirupati

23h 45m

26 stops

10:40 PM

CPSN

22535 - RMM BNRS SF EXP

11:55 PM

RMM

Rameswaram

2d 1h 15m

34 stops

01:10 AM

BNRS

22536 - BNRS RMM EXP

08:00 PM

BNRS

2d 2h 30m

36 stops

10:30 PM

RMM

Rameswaram