Edit
Edit
April 2025
- MON
- TUE
- WED
- THU
- FRI
- SAT
- SUN
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
Badvel to Ravulapalem NON-AC Seater Sleeper Bus
- Goibibo
- Bus Ticket Booking
- Bus from Badvel to Ravulapalem
- Badvel to Ravulapalem NON-AC Seater Sleeper Bus
Showing5 buses
Previous DayNext Day
Sort by:
BESTRATINGDEPARTUREARRIVALFASTESTCHEAPEST
| Bus Details | Time and Duration | Price | |
|---|---|---|---|
Starts at 17:25 | ₹801 Starts from | 1 Buses 32 seats left SHOW BUSESFrom ₹801 View all |
Badvel to Ravulapalem Other Buses
AR & BCVR Travels A/C Seater/Sleeper (2+1) 4.0/5
| 20:00 Badvel 8h 0m 04:00 24th Apr Ravulapalem | ₹999 | SELECT SEAT 28 window seat 48 seats left ₹ 999 |
| |||
PRL BUS A/C Seater / Sleeper (2+1) 3.9/5 | 18:45 Badvel 9h 0m 03:45 24th Apr Bus Stand | ₹999 | SELECT SEAT 27 window seat 47 seats left ₹ 999 |
| |||
AR & BCVR Travels A/C Sleeper (2+1) 4.0/5
| 20:00 Badvel 8h 0m 04:00 24th Apr Ravulapalem | ₹1499 | SELECT SEAT 2 window seat 4 seats left ₹ 1499 |
| |||
AR & BCVR Travels A/C Sleeper (2+1) 4.0/5
| 20:00 Badvel 8h 0m 04:00 24th Apr Ravulapalem | ₹1699 | SELECT SEAT 2 window seat 4 seats left ₹ 1699 |
| |||
APSRTC-2714 SUPER LUXURY (NON-AC, 2 + 2 PUSH BACK) 3.9/5 | 17:25 BADVEL 11h 50m 05:15 24th Apr Bus Stand | ₹801 | SELECT SEAT 13 window seat 32 seats left ₹ 801 |
|
FAQs About NON-AC Seater Sleeper Buses from Badvel to Ravulapalem
Q. How many NON-AC Seater Sleeper buses currently operating from Badvel to Ravulapalem?
A. There are 0 NON-AC Seater Sleeper buses currently running from Badvel to Ravulapalem currently. Book Now
Q. What is the avg time taken by NON-AC Seater Sleeper bus for Badvel Ravulapalem Journey?
A. The time taken for Badvel to Ravulapalem by NON-AC Seater Sleeper bus via road travel is around 8h 0m (appx.). Book Now
Q. What is the cheapest bus fare between Badvel to Ravulapalem Travel on Goibibo?
A. The cheapest bus fare available between Badvel to Ravulapalem is ₹ 801. Book Now
Q. What are the popular bus operators currently serving buses for Badvel to Ravulapalem route?
A. Our top bus operators for Badvel to Ravulapalem bus route are: APSRTC, AR & BCVR Travels, AR & BCVR Travels, PRL BUS Book Now
Boarding points in Badvel
- Badvel
- BADVEL
Dropping points in Ravulapalem
- Ravulapalem
- Bus Stand
Top routes from Badvel
- Badvel to Hyderabad Bus
- Badvel to Bangalore Bus
- Badvel to Vijayawada Bus
- Badvel to Visakhapatnam Bus
- Badvel to Chennai Bus
- Badvel to Bellary Bus
- Badvel to Guntur Bus
- Badvel to Rajahmundry Bus
- Badvel to Anantapur Bus
- Badvel to Tanuku Bus
- Badvel to Chilakaluripet Bus
- Badvel to Guntakal Bus
- Badvel to Jaggampeta Bus
- Badvel to Kakinada Bus
- Badvel to Tirupati Bus
- Badvel to Ongole Bus
- Badvel to Kurnool Bus
- Badvel to Hanuman Junction Bus
- Badvel to Eluru Bus
- Badvel to Nandyal Bus
- Badvel to Ravulapalem Bus
- Badvel to Annavaram Bus
- Badvel to Kanigiri Bus
- Badvel to Tadipatri Bus
- Badvel to Nellore Bus
- Badvel to Mydukur Bus
- Badvel to Tadepalligudem Bus
- Badvel to Tuni Bus
- Badvel to Anakapalle Bus
- Badvel to Madanapalli Bus
- Badvel to Samalkota Bus
- Badvel to Singarayakonda Bus
- Badvel to Peddapuram Bus
- Badvel to Sullurpet Bus
- Badvel to Mandapeta Bus
- Badvel to Ramachandrapuram Bus
- Badvel to Porumamilla Bus
- Badvel to Jindal Bus
- Badvel to Hospet Bus
- Badvel to Chirala Bus
Top routes to Badvel
- Hyderabad to Badvel Bus
- Bangalore to Badvel Bus
- Vijayawada to Badvel Bus
- Visakhapatnam to Badvel Bus
- Chennai to Badvel Bus
- Guntur to Badvel Bus
- Nellore to Badvel Bus
- Rajahmundry to Badvel Bus
- Bellary to Badvel Bus
- Tirupati to Badvel Bus
- Ongole to Badvel Bus
- Anantapur to Badvel Bus
- Annavaram to Badvel Bus
- Uravakonda to Badvel Bus
- Rajanagaram to Badvel Bus
- Guntakal to Badvel Bus
- Kakinada to Badvel Bus
- Eluru to Badvel Bus
- Chilakaluripet to Badvel Bus
- Kurnool to Badvel Bus
- Hanuman Junction to Badvel Bus
- Ravulapalem to Badvel Bus
- Tanuku to Badvel Bus
- Mydukur to Badvel Bus
- Tadipatri to Badvel Bus
- Tadepalligudem to Badvel Bus
- Nandyal to Badvel Bus
- Anakapalle to Badvel Bus
- Jaggampeta to Badvel Bus
- Tuni to Badvel Bus
- Mantralayam to Badvel Bus
- Jindal to Badvel Bus
- Vetapalem to Badvel Bus
- Karapa to Badvel Bus
- Ramachandrapuram to Badvel Bus
- Samalkota to Badvel Bus
- Mandapeta to Badvel Bus
- Velangi to Badvel Bus
- Chirala to Badvel Bus
- Porumamilla to Badvel Bus
Top routes to Ravulapalem
- Hyderabad to Ravulapalem Bus
- Bangalore to Ravulapalem Bus
- Chennai to Ravulapalem Bus
- Tirupati to Ravulapalem Bus
- Visakhapatnam to Ravulapalem Bus
- Vijayawada to Ravulapalem Bus
- Nellore to Ravulapalem Bus
- Chittoor to Ravulapalem Bus
- Guntur to Ravulapalem Bus
- Kurnool to Ravulapalem Bus
- Anantapur to Ravulapalem Bus
- Bhadrachalam to Ravulapalem Bus
- Nandyal to Ravulapalem Bus
- Kadapa to Ravulapalem Bus
- Proddutur to Ravulapalem Bus
- Bhimavaram to Ravulapalem Bus
- Kotturu to Ravulapalem Bus
- Raichur to Ravulapalem Bus
- Tekkali to Ravulapalem Bus
- Palamaner to Ravulapalem Bus
- Pamuru to Ravulapalem Bus
- Medarametla to Ravulapalem Bus
- Hyderabad Airport to Ravulapalem Bus
- Srikakulam to Ravulapalem Bus
- Bhubaneswar to Ravulapalem Bus
- Sullurupeta (By-Pass) to Ravulapalem Bus
- Ongole to Ravulapalem Bus
- Bobbili to Ravulapalem Bus
- Kodad to Ravulapalem Bus
- Ranasthalam to Ravulapalem Bus
- Pydibimavaram to Ravulapalem Bus
- Rajahmundry to Ravulapalem Bus
- Singarayakonda to Ravulapalem Bus
- Nakkapalli to Ravulapalem Bus
- Amalapuram to Ravulapalem Bus
- Narketpalli (Telangana) to Ravulapalem Bus
- Narasannapeta to Ravulapalem Bus
- Kolar to Ravulapalem Bus
- Tagarapuvalasa to Ravulapalem Bus
- Nandigama to Ravulapalem Bus
- Badvel to Ravulapalem Bus
Top routes from Ravulapalem
- Ravulapalem to Hyderabad Bus
- Ravulapalem to Bangalore Bus
- Ravulapalem to Visakhapatnam Bus
- Ravulapalem to Chennai Bus
- Ravulapalem to Vijayawada Bus
- Ravulapalem to Tirupati Bus
- Ravulapalem to Chittoor Bus
- Ravulapalem to Nellore Bus
- Ravulapalem to Kadapa Bus
- Ravulapalem to Bapatla Bus
- Ravulapalem to Srikakulam Bus
- Ravulapalem to Razam Bus
- Ravulapalem to Guntur Bus
- Ravulapalem to Anantapur Bus
- Ravulapalem to Guduru (Andhra Pradesh) Bus
- Ravulapalem to Raichur Bus
- Ravulapalem to Ichchapuram Bus
- Ravulapalem to Kurnool Bus
- Ravulapalem to Hyderabad Airport Bus
- Ravulapalem to Bhubaneswar Bus
- Ravulapalem to Vijayanagaram Bus
- Ravulapalem to Proddutur Bus
- Ravulapalem to Chirala Bus
- Ravulapalem to Nandyal Bus
- Ravulapalem to Gangavathi Bus
- Ravulapalem to Manvi Bus
- Ravulapalem to Salur Bus
- Ravulapalem to Srikalahasthi Bus
- Ravulapalem to Chebrolu Bus
- Ravulapalem to Ongole Bus
- Ravulapalem to Narasannapeta Bus
- Ravulapalem to Singarayakonda Bus
- Ravulapalem to Suryapet Bus
- Ravulapalem to Martur Bus
- Ravulapalem to Nakkapalli Bus
- Ravulapalem to Tekkali Bus
- Ravulapalem to Tagarapuvalasa Bus
- Ravulapalem to Vinukonda Bus
- Ravulapalem to Nandigama Bus
- Ravulapalem to Tanguturu Bus
- Ravulapalem to Badvel Bus
Popular cities near Badvel
- Chilakaluripet Bus
- Ongole Bus
- Guntur Bus
- Kurnool Bus
- Nandyal Bus
- Vijayawada Bus
- Nellore Bus
- Mydukur Bus
- Tadipatri Bus
- Kanigiri Bus
- Anantapur Bus
- Madanapalli Bus
- Pamuru Bus
- Kadapa Bus
- Proddutur Bus
- Kavali Bus
- Singarayakonda Bus
- Kadiri Bus
- Gooty Bus
- Tirupati Bus
- Duvvuru Bus
- Uravakonda Bus
- Mangalagiri Bypass Bus
- Guntakal Bus
- Yemmiganur Bus
- Mantralayam Bus
- Chirala Bus
- Hanuman Junction Bus
- Porumamilla Bus
Popular cities near Ravulapalem
- Vijayawada Bus
- Guntur Bus
- Visakhapatnam Bus
- Anakapalle Bus
- Chilakaluripet Bus
- Eluru Bus
- Hanuman Junction Bus
- Tuni Bus
- Annavaram Bus
- Gannavaram Bus
- Tadepalligudem Bus
- Tanuku Bus
- Rajahmundry Bus
- Kakinada Bus
- Nakkapalli Bus
- Ongole Bus
- Martur Bus
- Nandigama Bus
- Kanchikacherla Bus
- Yelamanchili Bus
- Kodad Bus
- Narsaraopet Bus
- Mandapeta Bus
- Thagarapuvalasa Bus
- Amalapuram Bus
- Adda Road Circle Bus
- Kothapeta Bus
- Vijayawada Airport Bus
- Peravali Bus
- Ranasthalam Bus
Top Bus Operators Between Badvel and Ravulapalem
Top Bus Operators from Badvel
- Badvel to Hyderabad BCVR Travels Bus
- Badvel to Hyderabad PRL BUS
- Badvel to Vijayawada Vasavi travels Bus
- Badvel to Hyderabad Maheswari Travels Bus
- Badvel to Hyderabad AR Travels Bus
- Badvel to Hyderabad HARITHA TRAVELS Bus
- Badvel to Hyderabad Matangi Travels Bus
- Badvel to Bangalore Sri Vinayaka Travels Bus
- Badvel to Hyderabad KMR Travels Bus
- Badvel to Hyderabad SEVEN HILLS TRAVELS Bus
- Badvel to Vijayawada APSRTC Bus
- Badvel to Hyderabad Indu Travels Bus
- Badvel to Vijayawada PRL BUS
- Badvel to Hyderabad Karthik Travels Bus
- Badvel to Bangalore Sri Vengamamba Bus Transport Pvt Ltd Bus
- Badvel to Hyderabad Maheswari Travels Bus
- Badvel to Vijayawada BCVR Travels Bus
- Badvel to Bangalore APSRTC Bus
- Badvel to Chennai APSRTC Bus
- Badvel to Hyderabad Dharshini Travels Bus
- Badvel to Bellary APSRTC Bus
- Badvel to Bangalore Maheswari Travels Bus
- Badvel to Visakhapatnam BCVR Travels Bus
- Badvel to Bangalore HARITHA TRAVELS Bus
- Badvel to Hyderabad INDHU BUS
- Badvel to Hyderabad Indu Travels Bus
- Badvel to Vijayawada Indu Travels Bus
- Badvel to Bangalore S R Travels Bus
Top Bus Operators to Ravulapalem
- Hyderabad to Ravulapalem Mythri Tours And Travels Bus
- Hyderabad to Ravulapalem BSR Tours and Travels Grand Bus
- Chennai to Ravulapalem Sri Krishna Travels Bus
- Bangalore to Ravulapalem Shyamoli Paribahan Pvt Ltd Bus
- Hyderabad to Ravulapalem Go Tour Travels and Holidays Bus
- Vijayawada to Ravulapalem APSRTC Bus
- Hyderabad to Ravulapalem V Kaveri Travels Bus
- Hyderabad to Ravulapalem Orange Tours and Travels Grand Bus
- Bangalore to Ravulapalem Rajesh Transports Bus
- Bangalore to Ravulapalem Express Line Bus
- Hyderabad to Ravulapalem Samanvi Travels Bus
- Bangalore to Ravulapalem Sri Krishna Travels Bus
- Hyderabad to Ravulapalem Sai Virat Travels Bus
- Visakhapatnam to Ravulapalem APSRTC Bus
- Hyderabad to Ravulapalem Kaveri Tours and Travels Bus
- Hyderabad to Ravulapalem Holidays Tours and Travels Bus
- Hyderabad to Ravulapalem APSRTC Bus
- Hyderabad to Ravulapalem Jayanthi Travels Bus
- Hyderabad to Ravulapalem Sri Krishna Travels Bus
- Hyderabad to Ravulapalem DMR Travels Bus
- Visakhapatnam to Ravulapalem NueGo Bus
- Bangalore to Ravulapalem Prasanna Travels Bus
- Bangalore to Ravulapalem Orange Tours and Travels Grand Bus
- Chennai to Ravulapalem Svkdt travels Bus
- Hyderabad to Ravulapalem KKaveri Travels Bus
- Bangalore to Ravulapalem Svkdt travels Bus
- Tirupati to Ravulapalem Express Line Bus
- Hyderabad to Ravulapalem Ramana Tours And Travels Bus
- Hyderabad to Ravulapalem Orange Tours and Travels Bus
- Hyderabad to Ravulapalem Morning Star Travels Bus
Airport Routes from Ravulapalem
Airport Routes to Ravulapalem
NON-AC Seater Sleeper Bus from Badvel
- Badvel to Hyderabad NON-AC Seater Sleeper Bus
- Badvel to Bangalore NON-AC Seater Sleeper Bus
- Badvel to Vijayawada NON-AC Seater Sleeper Bus
- Badvel to Visakhapatnam NON-AC Seater Sleeper Bus
- Badvel to Chennai NON-AC Seater Sleeper Bus
- Badvel to Bellary NON-AC Seater Sleeper Bus
- Badvel to Guntur NON-AC Seater Sleeper Bus
- Badvel to Rajahmundry NON-AC Seater Sleeper Bus
- Badvel to Anantapur NON-AC Seater Sleeper Bus
- Badvel to Tanuku NON-AC Seater Sleeper Bus
- Badvel to Chilakaluripet NON-AC Seater Sleeper Bus
- Badvel to Guntakal NON-AC Seater Sleeper Bus
- Badvel to Jaggampeta NON-AC Seater Sleeper Bus
- Badvel to Kakinada NON-AC Seater Sleeper Bus
- Badvel to Tirupati NON-AC Seater Sleeper Bus
- Badvel to Ongole NON-AC Seater Sleeper Bus
- Badvel to Kurnool NON-AC Seater Sleeper Bus
- Badvel to Hanuman Junction NON-AC Seater Sleeper Bus
- Badvel to Eluru NON-AC Seater Sleeper Bus
- Badvel to Nandyal NON-AC Seater Sleeper Bus
- Badvel to Annavaram NON-AC Seater Sleeper Bus
- Badvel to Kanigiri NON-AC Seater Sleeper Bus
- Badvel to Tadipatri NON-AC Seater Sleeper Bus
- Badvel to Nellore NON-AC Seater Sleeper Bus
- Badvel to Mydukur NON-AC Seater Sleeper Bus
- Badvel to Tadepalligudem NON-AC Seater Sleeper Bus
- Badvel to Tuni NON-AC Seater Sleeper Bus
- Badvel to Anakapalle NON-AC Seater Sleeper Bus
- Badvel to Madanapalli NON-AC Seater Sleeper Bus
- Badvel to Samalkota NON-AC Seater Sleeper Bus
- Badvel to Singarayakonda NON-AC Seater Sleeper Bus
- Badvel to Peddapuram NON-AC Seater Sleeper Bus
- Badvel to Sullurpet NON-AC Seater Sleeper Bus
- Badvel to Mandapeta NON-AC Seater Sleeper Bus
- Badvel to Ramachandrapuram NON-AC Seater Sleeper Bus
- Badvel to Porumamilla NON-AC Seater Sleeper Bus
- Badvel to Jindal NON-AC Seater Sleeper Bus
- Badvel to Hospet NON-AC Seater Sleeper Bus
- Badvel to Chirala NON-AC Seater Sleeper Bus
NON-AC Seater Sleeper Bus to Ravulapalem
- Hyderabad to Ravulapalem NON-AC Seater Sleeper Bus
- Bangalore to Ravulapalem NON-AC Seater Sleeper Bus
- Chennai to Ravulapalem NON-AC Seater Sleeper Bus
- Tirupati to Ravulapalem NON-AC Seater Sleeper Bus
- Visakhapatnam to Ravulapalem NON-AC Seater Sleeper Bus
- Vijayawada to Ravulapalem NON-AC Seater Sleeper Bus
- Nellore to Ravulapalem NON-AC Seater Sleeper Bus
- Chittoor to Ravulapalem NON-AC Seater Sleeper Bus
- Guntur to Ravulapalem NON-AC Seater Sleeper Bus
- Kurnool to Ravulapalem NON-AC Seater Sleeper Bus
- Anantapur to Ravulapalem NON-AC Seater Sleeper Bus
- Bhadrachalam to Ravulapalem NON-AC Seater Sleeper Bus
- Nandyal to Ravulapalem NON-AC Seater Sleeper Bus
- Kadapa to Ravulapalem NON-AC Seater Sleeper Bus
- Proddutur to Ravulapalem NON-AC Seater Sleeper Bus
- Bhimavaram to Ravulapalem NON-AC Seater Sleeper Bus
- Kotturu to Ravulapalem NON-AC Seater Sleeper Bus
- Raichur to Ravulapalem NON-AC Seater Sleeper Bus
- Tekkali to Ravulapalem NON-AC Seater Sleeper Bus
- Palamaner to Ravulapalem NON-AC Seater Sleeper Bus
- Pamuru to Ravulapalem NON-AC Seater Sleeper Bus
- Medarametla to Ravulapalem NON-AC Seater Sleeper Bus
- Hyderabad Airport to Ravulapalem NON-AC Seater Sleeper Bus
- Srikakulam to Ravulapalem NON-AC Seater Sleeper Bus
- Bhubaneswar to Ravulapalem NON-AC Seater Sleeper Bus
- Sullurupeta (By-Pass) to Ravulapalem NON-AC Seater Sleeper Bus
- Ongole to Ravulapalem NON-AC Seater Sleeper Bus
- Bobbili to Ravulapalem NON-AC Seater Sleeper Bus
- Kodad to Ravulapalem NON-AC Seater Sleeper Bus
- Ranasthalam to Ravulapalem NON-AC Seater Sleeper Bus
- Pydibimavaram to Ravulapalem NON-AC Seater Sleeper Bus
- Rajahmundry to Ravulapalem NON-AC Seater Sleeper Bus
- Singarayakonda to Ravulapalem NON-AC Seater Sleeper Bus
- Nakkapalli to Ravulapalem NON-AC Seater Sleeper Bus
- Amalapuram to Ravulapalem NON-AC Seater Sleeper Bus
- Narketpalli (Telangana) to Ravulapalem NON-AC Seater Sleeper Bus
- Narasannapeta to Ravulapalem NON-AC Seater Sleeper Bus
- Kolar to Ravulapalem NON-AC Seater Sleeper Bus
- Tagarapuvalasa to Ravulapalem NON-AC Seater Sleeper Bus
- Nandigama to Ravulapalem NON-AC Seater Sleeper Bus
Popular Volvo City Buses
- Ranasthalam Volvo Bus
- Bhubaneswar Volvo Bus
- Srikakulam Volvo Bus
- Manvi Volvo Bus
- Sullurpet Volvo Bus
- Badvel Volvo Bus
- Nandigama Volvo Bus
- Peddapuram Volvo Bus
- Narasannapeta Volvo Bus
- Samalkota Volvo Bus
- Tadipatri Volvo Bus
- Chirala Volvo Bus
- Kadapa Volvo Bus
- Jaggampeta Volvo Bus
- Nellore Volvo Bus
- Hanuman Junction Volvo Bus
- Raichur Volvo Bus
- Anakapalle Volvo Bus
- Razam Volvo Bus
- Martur Volvo Bus
- Bhimavaram Volvo Bus
- Chennai Volvo Bus
- Tuni Volvo Bus
- Annavaram Volvo Bus
- Vijayanagaram Volvo Bus
- Nandyal Volvo Bus
- Uravakonda Volvo Bus
- Guntakal Volvo Bus
- Chittoor Volvo Bus
- Bellary Volvo Bus
- Kakinada Volvo Bus
- Mandapeta Volvo Bus
- Chilakaluripet Volvo Bus
- Ongole Volvo Bus
- Ramachandrapuram Volvo Bus
- Jindal Volvo Bus
- Nakkapalli Volvo Bus
- Medarametla Volvo Bus
- Anantapur Volvo Bus
- Guntur Volvo Bus
- Vijayawada Volvo Bus
- Kodad Volvo Bus
- Kurnool Volvo Bus
- Vinukonda Volvo Bus
- Vetapalem Volvo Bus
- Tadepalligudem Volvo Bus
- Hyderabad Volvo Bus
- Amalapuram Volvo Bus
- Tirupati Volvo Bus
- Bangalore Volvo Bus
- Velangi Volvo Bus
- Kanigiri Volvo Bus
- Karapa Volvo Bus
- Bobbili Volvo Bus
- Tanguturu Volvo Bus
- Pamuru Volvo Bus
- Pydibimavaram Volvo Bus
- Rajahmundry Volvo Bus
- Mydukur Volvo Bus
- Sullurupeta (By-Pass) Volvo Bus
- Bapatla Volvo Bus
- Guduru (Andhra Pradesh) Volvo Bus
- Narketpalli (Telangana) Volvo Bus
- Suryapet Volvo Bus
- Mantralayam Volvo Bus
- Kotturu Volvo Bus
- Ravulapalem Volvo Bus
- Singarayakonda Volvo Bus
- Bhadrachalam Volvo Bus
- Visakhapatnam Volvo Bus
- Tanuku Volvo Bus
- Tagarapuvalasa Volvo Bus
- Tekkali Volvo Bus
- Srikalahasthi Volvo Bus
- Porumamilla Volvo Bus
- Chebrolu Volvo Bus
- Ichchapuram Volvo Bus
- Madanapalli Volvo Bus
- Hyderabad Airport Volvo Bus
- Rajanagaram Volvo Bus
- Salur Volvo Bus
- Hospet Volvo Bus
- Gangavathi Volvo Bus
- Palamaner Volvo Bus
- Kolar Volvo Bus
- Proddutur Volvo Bus
- Eluru Volvo Bus