From
To
Date
Wed, Apr 8

Authorised IRCTC partner

Tuni To Mamdapur Trains

Popular Trains from Tuni to Mamdapur

20 found from SLO, TUNI, PAP, CCT to SC, BG, MJF, CHZ, RMNP, NLDA, MLY

Train name and numberStarting stationDurationEnding station

12737 - GOUTAMI SF EXP

Runs onMTWTFSS

07:40 PM

SLO

Samalkot

53 KM from TUNI

7h 53m

351 KM

21 stops

03:34 AM

BG

Bhongir

18 KM from MMPR

Starting from ₹325

12805 - JANMABHOOMI EXP

Runs onMTWTFSS

07:40 AM

TUNI

Tuni

8h 26m

367 KM

25 stops

04:07 PM

RMNP

Ramannapet

15 KM from MMPR

18045 - EAST COAST EXP

Runs onMTWTFSS

05:30 AM

TUNI

Tuni

10h 14m

387 KM

56 stops

03:44 PM

BG

Bhongir

18 KM from MMPR

Starting from ₹325

18503 - VSKP SNSI EXP

Runs onMTWTFSS

09:45 AM

TUNI

Tuni

10h 10m

417 KM

24 stops

07:55 PM

CHZ

Charlapalli

40 KM from MMPR

12861 - VSKP MBNR SF

Runs onMTWTFSS

08:05 PM

TUNI

Tuni

10h 28m

426 KM

22 stops

06:33 AM

MJF

Hyderabad

48 KM from MMPR

Starting from ₹370

12739 - GARIB RATH

Runs onMTWTFSS

10:05 PM

TUNI

Tuni

10h 15m

428 KM

11 stops

08:20 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹730

17015 - VISAKHA EXPRESS

Runs onMTWTFSS

06:00 PM

TUNI

Tuni

10h 40m

347 KM

43 stops

04:40 AM

NLDA

Nalgonda

47 KM from MMPR

Starting from ₹290

12755 - COA BVC SF EXP

Runs onMTWTFSS

06:05 AM

SLO

Samalkot

53 KM from TUNI

6h 18m

306 KM

32 stops

12:23 PM

NLDA

Nalgonda

47 KM from MMPR

Starting from ₹730

12727 - GODAVARI EXPRES

Runs onMTWTFSS

06:50 PM

TUNI

Tuni

10h 25m

428 KM

21 stops

05:15 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹375

12783 - VSKP SC AC EXP

Runs onMTWTFSS

08:30 PM

TUNI

Tuni

10h 34m

428 KM

12 stops

07:04 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹945

11020 - KONARK EXPRESS

Runs onMTWTFSS

11:50 PM

TUNI

Tuni

11h

428 KM

43 stops

10:50 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹940

12703 - FALAKNUMA EXP

Runs onMTWTFSS

12:40 AM

SLO

Samalkot

53 KM from TUNI

7h 10m

306 KM

26 stops

07:50 AM

NLDA

Nalgonda

47 KM from MMPR

Starting from ₹280

20833 - VANDE BHARAT EXP

Runs onMTWTFSS

07:05 AM

SLO

Samalkot

53 KM from TUNI

7h 15m

391 KM

7 stops

02:20 PM

SC

Hyderabad

51 KM from MMPR

Starting from ₹1180

20708 - VANDE BHARAT EXP

Runs onMTWTFSS

03:55 PM

SLO

Samalkot

53 KM from TUNI

7h 30m

391 KM

8 stops

11:25 PM

SC

Hyderabad

51 KM from MMPR

17206 - COA SNSI EXP

Runs onMTWTFSS

05:30 AM

SLO

Samalkot

53 KM from TUNI

9h 34m

381 KM

35 stops

03:04 PM

CHZ

Charlapalli

40 KM from MMPR

18519 - VSKP LTT EXPRES

Runs onMTWTFSS

01:25 AM

PAP

Pithapuram

41 KM from TUNI

10h 53m

389 KM

23 stops

12:18 PM

CHZ

Charlapalli

40 KM from MMPR

18111 - TATA YPR EXP

Runs onMTWTFSS

11:10 AM

SLO

Samalkot

53 KM from TUNI

9h 39m

386 KM

40 stops

08:49 PM

MLY

Hyderabad

46 KM from MMPR

Starting from ₹325

17221 - COA LTT EXPRESS

Runs onMTWTFSS

09:25 AM

SLO

Samalkot

53 KM from TUNI

10h 14m

386 KM

24 stops

07:39 PM

MLY

Hyderabad

46 KM from MMPR

Starting from ₹310

12775 - COCANADA SF EXP

Runs onMTWTFSS

08:20 PM

CCT

Kakinada

54 KM from TUNI

10h

399 KM

13 stops

06:20 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹215

12773 - SHM SC SUF EXP

Runs onMTWTFSS

07:50 AM

SLO

Samalkot

53 KM from TUNI

10h 10m

391 KM

16 stops

06:00 PM

SC

Hyderabad

51 KM from MMPR

Starting from ₹925

Covid Special Trains from Tuni to Mamdapur

64 found from ANV, YLM, TUNI, SLO, PAP to SC, ZN, PGDP, CHZ, NLDA

Train name and numberStarting stationDurationEnding station

07204 - COA BVC SPL

Runs onMTWTFSS

05:43 AM

SLO

Samalkot

53 KM from TUNI

6h 17m

306 KM

31 stops

12:00 PM

NLDA

Nalgonda

47 KM from MMPR

02773 - SRC SC SF SPL

Runs onMTWTFSS

09:47 AM

ANV

Annavaram

16 KM from TUNI

6h 58m

333 KM

23 stops

04:45 PM

NLDA

Nalgonda

47 KM from MMPR

08845 - SRC MBNR SPL

Runs onMTWTFSS

04:20 AM

SLO

Samalkot

53 KM from TUNI

7h

306 KM

22 stops

11:20 AM

NLDA

Nalgonda

47 KM from MMPR

07067 - CCT SC SPL

Runs onMTWTFSS

09:22 PM

SLO

Samalkot

53 KM from TUNI

7h 3m

306 KM

14 stops

04:25 AM

NLDA

Nalgonda

47 KM from MMPR

07043 - CCT SC SPL

Runs onMTWTFSS

09:22 PM

SLO

Samalkot

53 KM from TUNI

7h 3m

306 KM

14 stops

04:25 AM

NLDA

Nalgonda

47 KM from MMPR

07098 - VSKP SC SPL

Runs onMTWTFSS

09:36 PM

ANV

Annavaram

16 KM from TUNI

7h 25m

333 KM

15 stops

05:01 AM

NLDA

Nalgonda

47 KM from MMPR

07253 - CCT SC SPL

Runs onMTWTFSS

05:27 PM

SLO

Samalkot

53 KM from TUNI

7h 36m

306 KM

13 stops

01:03 AM

NLDA

Nalgonda

47 KM from MMPR

07452 - CCT HYB SPL

Runs onMTWTFSS

09:23 PM

SLO

Samalkot

53 KM from TUNI

7h 37m

306 KM

16 stops

05:00 AM

NLDA

Nalgonda

47 KM from MMPR

07057 - CCT SC SUMR SPL

Runs onMTWTFSS

09:23 PM

SLO

Samalkot

53 KM from TUNI

7h 37m

306 KM

15 stops

05:00 AM

NLDA

Nalgonda

47 KM from MMPR

07295 - CCT LPI SPL

Runs onMTWTFSS

08:31 PM

SLO

Samalkot

53 KM from TUNI

7h 38m

306 KM

16 stops

04:09 AM

NLDA

Nalgonda

47 KM from MMPR

Starting from ₹385

07439 - CCT LPI SPL

Runs onMTWTFSS

08:31 PM

SLO

Samalkot

53 KM from TUNI

7h 38m

306 KM

16 stops

04:09 AM

NLDA

Nalgonda

47 KM from MMPR

07071 - CCT SC SPL

Runs onMTWTFSS

09:22 PM

SLO

Samalkot

53 KM from TUNI

7h 38m

306 KM

16 stops

05:00 AM

NLDA

Nalgonda

47 KM from MMPR

07491 - CCT LPI SPL

Runs onMTWTFSS

08:32 PM

SLO

Samalkot

53 KM from TUNI

7h 42m

306 KM

15 stops

04:15 AM

NLDA

Nalgonda

47 KM from MMPR

07448 - BAM HYB SPL

Runs onMTWTFSS

09:30 PM

ANV

Annavaram

16 KM from TUNI

8h

333 KM

23 stops

05:30 AM

NLDA

Nalgonda

47 KM from MMPR

07480 - CTC SC SPL

Runs onMTWTFSS

07:32 AM

TUNI

Tuni

8h 8m

347 KM

23 stops

03:40 PM

NLDA

Nalgonda

47 KM from MMPR

08511 - VSKP SC SPL

Runs onMTWTFSS

10:00 PM

SLO

Samalkot

53 KM from TUNI

8h 24m

391 KM

7 stops

06:25 AM

SC

Hyderabad

51 KM from MMPR

07235 - SRC SC SPL

Runs onMTWTFSS

04:11 AM

YLM

Ellamanchili

39 KM from TUNI

8h 39m

382 KM

25 stops

12:50 PM

NLDA

Nalgonda

47 KM from MMPR

07498 - VSKP KCG SPL

Runs onMTWTFSS

11:15 PM

SLO

Samalkot

53 KM from TUNI

8h 45m

381 KM

13 stops

08:00 AM

CHZ

Charlapalli

40 KM from MMPR

08541 - VSKP KRNT SPL

Runs onMTWTFSS

06:24 PM

ANV

Annavaram

16 KM from TUNI

8h 51m

333 KM

19 stops

03:15 AM

NLDA

Nalgonda

47 KM from MMPR

08585 - VSKP KRNT SPL

Runs onMTWTFSS

06:23 PM

ANV

Annavaram

16 KM from TUNI

8h 52m

333 KM

20 stops

03:15 AM

NLDA

Nalgonda

47 KM from MMPR

Starting from ₹385

08589 - VSKP SC SUMR SPL

Runs onMTWTFSS

06:17 PM

ANV

Annavaram

16 KM from TUNI

9h 7m

333 KM

17 stops

03:24 AM

NLDA

Nalgonda

47 KM from MMPR

07022 - CCT SC SPL

Runs onMTWTFSS

06:12 PM

SLO

Samalkot

53 KM from TUNI

9h 17m

328 KM

18 stops

03:29 AM

ZN

Jangaon

42 KM from MMPR

07040 - CCT KCG SPL

Runs onMTWTFSS

06:52 PM

SLO

Samalkot

53 KM from TUNI

9h 33m

306 KM

18 stops

04:25 AM

NLDA

Nalgonda

47 KM from MMPR

07654 - CCT KCG SPL

Runs onMTWTFSS

05:27 PM

SLO

Samalkot

53 KM from TUNI

10h 1m

381 KM

15 stops

03:28 AM

CHZ

Charlapalli

40 KM from MMPR

07432 - BAM NED SPL

Runs onMTWTFSS

11:04 PM

ANV

Annavaram

16 KM from TUNI

10h 11m

416 KM

31 stops

09:15 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹1180

08420 - BBS LTT SUMR SPL

Runs onMTWTFSS

07:53 AM

TUNI

Tuni

10h 17m

395 KM

46 stops

06:10 PM

PGDP

Pagidipalli

20 KM from MMPR

07210 - CCT HYB SPL

Runs onMTWTFSS

06:12 PM

SLO

Samalkot

53 KM from TUNI

10h 18m

381 KM

20 stops

04:30 AM

CHZ

Charlapalli

40 KM from MMPR

08523 - VSKP CHZ SPL

Runs onMTWTFSS

09:10 PM

SLO

Samalkot

53 KM from TUNI

10h 20m

381 KM

16 stops

07:30 AM

CHZ

Charlapalli

40 KM from MMPR

07047 - NHLN SC SPECIAL

Runs onMTWTFSS

08:55 AM

YLM

Ellamanchili

39 KM from TUNI

10h 23m

450 KM

45 stops

07:18 PM

CHZ

Charlapalli

40 KM from MMPR

03299 - PNBE CHZ SPL

Runs onMTWTFSS

09:52 PM

SLO

Samalkot

53 KM from TUNI

10h 23m

381 KM

39 stops

08:15 AM

CHZ

Charlapalli

40 KM from MMPR

07752 - DNR CHZ SPL

Runs onMTWTFSS

09:52 PM

SLO

Samalkot

53 KM from TUNI

10h 23m

381 KM

39 stops

08:15 AM

CHZ

Charlapalli

40 KM from MMPR

07756 - DNR CHZ SPL

Runs onMTWTFSS

09:52 PM

SLO

Samalkot

53 KM from TUNI

10h 23m

381 KM

39 stops

08:15 AM

CHZ

Charlapalli

40 KM from MMPR

07750 - DNR CHZ SPL

Runs onMTWTFSS

09:52 PM

SLO

Samalkot

53 KM from TUNI

10h 23m

381 KM

40 stops

08:15 AM

CHZ

Charlapalli

40 KM from MMPR

07754 - DNR CHZ SPL

Runs onMTWTFSS

09:52 PM

SLO

Samalkot

53 KM from TUNI

10h 23m

381 KM

39 stops

08:15 AM

CHZ

Charlapalli

40 KM from MMPR

07704 - Shalimar - Charlapalli Special Fare Holi Special

Runs onMTWTFSS

09:42 PM

SLO

Samalkot

53 KM from TUNI

10h 28m

381 KM

29 stops

08:10 AM

CHZ

Charlapalli

40 KM from MMPR

07742 - Shalimar - Secunderabad Special Fare Holi Special

Runs onMTWTFSS

02:25 AM

TUNI

Tuni

10h 35m

428 KM

24 stops

01:00 PM

SC

Hyderabad

51 KM from MMPR

02904 - DBRG SC SPECIAL

Runs onMTWTFSS

05:55 PM

SLO

Samalkot

53 KM from TUNI

10h 35m

391 KM

43 stops

04:30 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹210

02604 - GHY SC SPECIAL

Runs onMTWTFSS

05:55 PM

SLO

Samalkot

53 KM from TUNI

10h 35m

391 KM

32 stops

04:30 AM

SC

Hyderabad

51 KM from MMPR

07226 - SHM SC SPL

Runs onMTWTFSS

02:25 AM

TUNI

Tuni

10h 35m

428 KM

24 stops

01:00 PM

SC

Hyderabad

51 KM from MMPR

07130 - KUR SC SUMRSPL

Runs onMTWTFSS

08:35 AM

TUNI

Tuni

10h 40m

347 KM

28 stops

07:15 PM

NLDA

Nalgonda

47 KM from MMPR

07445 - CCT LPI SPL

Runs onMTWTFSS

08:31 PM

SLO

Samalkot

53 KM from TUNI

10h 44m

381 KM

16 stops

07:15 AM

CHZ

Charlapalli

40 KM from MMPR

07706 - SRC CHZ SPL

Runs onMTWTFSS

05:47 AM

SLO

Samalkot

53 KM from TUNI

10h 53m

381 KM

25 stops

04:40 PM

CHZ

Charlapalli

40 KM from MMPR

01056 - BBS CSMT SUMRSPL

Runs onMTWTFSS

08:25 AM

PAP

Pithapuram

41 KM from TUNI

10h 55m

400 KM

22 stops

07:20 PM

SC

Hyderabad

51 KM from MMPR

03430 - MLDT CHZ SPL

Runs onMTWTFSS

05:00 PM

SLO

Samalkot

53 KM from TUNI

11h

381 KM

29 stops

04:00 AM

CHZ

Charlapalli

40 KM from MMPR

07042 - CHE KCG SPL

Runs onMTWTFSS

06:25 PM

ANV

Annavaram

16 KM from TUNI

11h 5m

405 KM

21 stops

05:30 AM

CHZ

Charlapalli

40 KM from MMPR

07616 - CHE KCG SPL

Runs onMTWTFSS

06:25 PM

ANV

Annavaram

16 KM from TUNI

11h 5m

405 KM

21 stops

05:30 AM

CHZ

Charlapalli

40 KM from MMPR

08323 - SBP KCG SUMR SPL

Runs onMTWTFSS

08:35 AM

TUNI

Tuni

11h 5m

417 KM

30 stops

07:40 PM

CHZ

Charlapalli

40 KM from MMPR

08325 - SBP KCG SUMRSPL

Runs onMTWTFSS

08:35 AM

TUNI

Tuni

11h 5m

417 KM

31 stops

07:40 PM

CHZ

Charlapalli

40 KM from MMPR

07070 - Puri - Secunderabad Special Fare Festival Special

Runs onMTWTFSS

09:20 AM

SLO

Samalkot

53 KM from TUNI

11h 10m

391 KM

21 stops

08:30 PM

SC

Hyderabad

51 KM from MMPR

07570 - PURI SC SPL

Runs onMTWTFSS

09:20 AM

SLO

Samalkot

53 KM from TUNI

11h 10m

391 KM

20 stops

08:30 PM

SC

Hyderabad

51 KM from MMPR

Starting from ₹415

07568 - CCT SC SPL

Runs onMTWTFSS

09:37 PM

SLO

Samalkot

53 KM from TUNI

11h 18m

391 KM

11 stops

08:55 AM

SC

Hyderabad

51 KM from MMPR

07038 - CCT CHZ SPL

Runs onMTWTFSS

08:52 PM

SLO

Samalkot

53 KM from TUNI

11h 38m

381 KM

17 stops

08:30 AM

CHZ

Charlapalli

40 KM from MMPR

07488 - CCT NED SPL

Runs onMTWTFSS

06:50 PM

SLO

Samalkot

53 KM from TUNI

11h 40m

391 KM

17 stops

06:30 AM

SC

Hyderabad

51 KM from MMPR

Starting from ₹415

07032 - CCT CHZ SPL

Runs onMTWTFSS

08:30 PM

SLO

Samalkot

53 KM from TUNI

12h

381 KM

14 stops

08:30 AM

CHZ

Charlapalli

40 KM from MMPR

08551 - VSKP CHZ SPL

Runs onMTWTFSS

07:55 PM

TUNI

Tuni

12h 5m

417 KM

19 stops

08:00 AM

CHZ

Charlapalli

40 KM from MMPR

07026 - CHE CHZ SPL

Runs onMTWTFSS

05:55 PM

TUNI

Tuni

12h 5m

417 KM

21 stops

06:00 AM

CHZ

Charlapalli

40 KM from MMPR

08509 - VSKP CHZ SPL

Runs onMTWTFSS

07:55 PM

TUNI

Tuni

12h 5m

417 KM

19 stops

08:00 AM

CHZ

Charlapalli

40 KM from MMPR

08035 - Shalimar - Secunderabad Special Fare Exam Special

Runs onMTWTFSS

10:54 PM

SLO

Samalkot

53 KM from TUNI

12h 6m

391 KM

19 stops

11:00 AM

SC

Hyderabad

51 KM from MMPR

07481 - CCT CHZ SPL

Runs onMTWTFSS

11:37 PM

SLO

Samalkot

53 KM from TUNI

12h 8m

381 KM

15 stops

11:45 AM

CHZ

Charlapalli

40 KM from MMPR

08579 - CHZ HOLI SPL

Runs onMTWTFSS

07:50 PM

ANV

Annavaram

16 KM from TUNI

12h 10m

405 KM

21 stops

08:00 AM

CHZ

Charlapalli

40 KM from MMPR

07222 - SRC CHZ SPL

Runs onMTWTFSS

05:17 AM

SLO

Samalkot

53 KM from TUNI

12h 13m

381 KM

27 stops

05:30 PM

CHZ

Charlapalli

40 KM from MMPR

08479 - BBS CHZ SPL

Runs onMTWTFSS

07:37 PM

TUNI

Tuni

12h 13m

417 KM

22 stops

07:50 AM

CHZ

Charlapalli

40 KM from MMPR

07028 - CHZ HOLI SPL

Runs onMTWTFSS

06:22 PM

ANV

Annavaram

16 KM from TUNI

13h 8m

405 KM

24 stops

07:30 AM

CHZ

Charlapalli

40 KM from MMPR

07426 - SC SUMMER SPL

Runs onMTWTFSS

11:00 PM

TUNI

Tuni

1d 10h 55m

417 KM

22 stops

09:55 AM

CHZ

Charlapalli

40 KM from MMPR

Other Trains from Tuni to Mamdapur

3 found from SLO, TUNI to NLDA, MJF, BG

Train name and numberStarting stationDurationEnding station

17204 - COA BVC EXPRESS

Runs onMTWTFSS

05:43 AM

SLO

Samalkot

53 KM from TUNI

6h 17m

306 KM

33 stops

12:00 PM

NLDA

Nalgonda

47 KM from MMPR

18645 - EAST COAST EXP

Runs onMTWTFSS

05:35 AM

TUNI

Tuni

9h 49m

387 KM

56 stops

03:24 PM

BG

Bhongir

18 KM from MMPR

18561 - VSKP KCG EXP

Runs onMTWTFSS

08:10 PM

TUNI

Tuni

10h 9m

426 KM

18 stops

06:19 AM

MJF

Hyderabad

48 KM from MMPR

Trains from Mamdapur to Tuni

Trains originating from Tuni

Train name and numberStarting stationDurationEnding station

17250 - CCT TPTY EXP

03:15 PM

CCT

Kakinada

14h 10m

478 KM

32 stops

05:25 AM

TPTY

Tirupati

07532 - CCT TPTY SPL

07:30 PM

CCT

Kakinada

12h 50m

478 KM

12 stops

08:20 AM

TPTY

Tirupati

17644 - CIRCAR EXPRESS

02:30 PM

COA

Kakinada

17h

532 KM

34 stops

07:30 AM

CGL

Chengalpattu

07644 - COA PDY SPL

07:00 AM

COA

Kakinada

19h

616 KM

36 stops

02:00 AM

PDY

Pondicherry

17655 - COA PDY EXPRESS

02:30 PM

COA

Kakinada

19h 20m

616 KM

37 stops

09:50 AM

PDY

Pondicherry

Trains passing through Tuni

Train name and numberStarting stationDurationEnding station

11019 - KONARK EXPRESS

02:00 PM

CSMT

Mumbai

1d 10h 20m

44 stops

12:20 AM

BBSN

17016 - VISAKHA EXP

04:50 PM

SC

Hyderabad

23h 35m

43 stops

04:25 PM

BBSN

07165 - CHZ BBSN SPL

06:10 PM

CHZ

Charlapalli

23h 10m

25 stops

05:20 PM

BBSN

06184 - DNR KCVL SPL

10:25 PM

DNR

Patna

2d 9h 5m

38 stops

07:30 AM

TVCN

57265 - Visakhapatnam - Narasapur (Link) Passenger

07:15 PM

VSKP

Visakhapatnam

8h 40m

220 KM

26 stops

03:55 AM

NS

Narasapur

Trains reaching to Mamdapur

Train name and numberStarting stationDurationEnding station

17009 - BIDR HYB EXP

06:50 AM

BIDR

Bidar

3h 35m

116 KM

9 stops

10:25 AM

HYB

Hyderabad

57602 - KCG PASSENGER

02:15 PM

WADI

Wadi

5h 20m

161 KM

27 stops

07:35 PM

KCG

Hyderabad

17028 - HUNDRY EXPRESS

05:30 AM

KRNT

Kurnool

6h 10m

179 KM

15 stops

11:40 AM

HYB

Hyderabad

17024 - TUNGABHADRA EXP

03:00 PM

KRNT

Kurnool

4h 55m

179 KM

13 stops

07:55 PM

KCG

Hyderabad

17660 - BDCR SC EXP

05:10 AM

BDCR

Bhadrachalam

6h 30m

224 KM

28 stops

11:40 AM

SC

Hyderabad

Trains passing through Mamdapur

Train name and numberStarting stationDurationEnding station

11019 - KONARK EXPRESS

02:00 PM

CSMT

Mumbai

1d 10h 20m

44 stops

12:20 AM

BBSN

17016 - VISAKHA EXP

04:50 PM

SC

Hyderabad

23h 35m

43 stops

04:25 PM

BBSN

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

07165 - CHZ BBSN SPL

06:10 PM

CHZ

Charlapalli

23h 10m

25 stops

05:20 PM

BBSN