February 2026
- 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
Biaora to Ujjain Seater Bus
- Goibibo
- Bus Ticket Booking
- Bus from Biaora to Ujjain
- Biaora to Ujjain Seater Bus
| Bus Details | Time and Duration | Price | |
|---|---|---|---|
GK Travels Bharat Benz A/C Seater /Sleeper (2+1) 4.0/5
| 10:00 Biaora bypass 2h 15m 12:15 19th Feb Nanakheda Bus Stand | ₹899 | SELECT SEAT 28 window seat 45 seats left ₹ 899 |
| |||
Ashok Travels NON A/C Seater / Sleeper (3+1) 4.0/5 | 06:30 Biaora 3h 30m 10:00 19th Feb Dewas Gate | ₹4625 ₹5000 | SELECT SEAT 34 seats left ₹ 5000 ₹ 4625 |
M.Yadav Travels Non AC Seater 2+2 2.6/5 | 10:20 Biaora Bus Stand,Madhya Pradesh 4h 40m 15:00 19th Feb Dewas Gate | ₹218 ₹242 | SELECT SEAT 20 window seat 45 seats left ₹ 242 ₹ 218 |
| |||
M.Yadav Travels Non AC Seater 2+2 2.6/5 | 13:20 Biaora Bus Stand,Madhya Pradesh 4h 40m 18:00 19th Feb Dewas Gate | ₹218 ₹242 | SELECT SEAT 20 window seat 45 seats left ₹ 242 ₹ 218 |
| |||
M.Yadav Travels Non AC Seater 2+2 2.6/5 | 08:00 Biaora Bus Stand,Madhya Pradesh 4h 20m 12:20 19th Feb Dewas Gate | ₹218 ₹242 | SELECT SEAT 20 window seat 45 seats left ₹ 242 ₹ 218 |
BK Yadav Travels NON A/C Seater (2+3) 1.2/5 | 15:00 Biaora Bus Stand,Madhya Pradesh 5h 10m 20:10 19th Feb Dewas Gate | ₹216 ₹240 | SELECT SEAT 14 window seat 42 seats left ₹ 240 ₹ 216 |
Biaora to Ujjain Other Buses
Bluecity Bus A/C Sleeper (2+1) 4.5/5
| 04:30 Biaora Bypass 3h 0m 07:30 19th Feb Nanakheda Bus Stand Ujjain | ₹1400 | SELECT SEAT 21 window seat 35 seats left ₹ 1400 |
| |||
Sona Travels A/C Sleeper (2+1) 4.3/5
| 01:00 Sona By Sharma Travels Bus Stand 4h 0m 05:00 19th Feb Dewas Gate Bus Stand | ₹779 ₹879 | SELECT SEAT 22 window seat 36 seats left ₹ 879 ₹ 779 |
| |||
Gajraj Travels A/C Sleeper (2+1) 4.5/5
| 04:45 Biaora 2h 15m 07:00 19th Feb Nanakheda Bus Stand | ₹1600 | SELECT SEAT 17 window seat 27 seats left ₹ 1600 |
| |||
Gajraj Travels A/C Sleeper (2+1) 4.5/5
| 02:00 Biaora 3h 0m 05:00 19th Feb Dewas Gate | ₹1000 | SELECT SEAT 18 window seat 28 seats left ₹ 1000 |
| |||
Prasanna Purple Mobility Solutions Pvt Ltd NON A/C Sleeper (2+1) 4.2/5 | 03:40 Biaora By Pass 2h 50m 06:30 19th Feb PURPLE Office (Usha Travels) -Dewas Gate Bus Stand Ujjain, Madhya Pradesh Stand | ₹1000 | SELECT SEAT 12 window seat 12 seats left ₹ 1000 |
| |||
SKT Radhika Travels A/C Sleeper (2+1) 3.6/5 | 04:30 Sharma Travels Biaora 3h 0m 07:30 19th Feb Nanakheda Bus Stand SKT Radhika Travels | ₹950 | SELECT SEAT 21 window seat 34 seats left ₹ 950 |
| |||
Betrwanti Travels A/C Sleeper (2+1) 3.6/5 | 08:15 Hotel Shiwani Biaora 2h 15m 10:30 19th Feb Gujrat Travels Dewas Gate Bus Stand Opposite Post Office | ₹1300 | SELECT SEAT 15 window seat 26 seats left ₹ 1300 |
| |||
Hans Travels (I) Private Limited NON A/C Sleeper (2+1) 3.7/5 | 04:50 Biaora bus stand 3h 25m 08:15 19th Feb Nanakheda Bus Stand | ₹600 | SELECT SEAT 16 window seat 24 seats left ₹ 600 |
| |||
Balaji Travels AshokNagar NON A/C Sleeper (2+1) 3.0/5 | 01:00 Biaora Bus Stand 4h 0m 05:00 19th Feb Dewas Gate | ₹600 | SELECT SEAT 18 window seat 30 seats left ₹ 600 |
| |||
Sunil Tour and Travels A/C Sleeper (2+1) 1.5/5 | 11:00 Bypass Biaora 4h 0m 15:00 19th Feb Nanakheda Bus Stand | ₹5500 | SELECT SEAT 18 window seat 30 seats left ₹ 5500 |
|
FAQs About Seater Buses from Biaora to Ujjain
Q. How many Seater buses currently operating from Biaora to Ujjain?
A. There are 6 Seater buses currently running from Biaora to Ujjain currently. Book Now
Q. What is the avg time taken by Seater bus for Biaora Ujjain Journey?
A. The time taken for Biaora to Ujjain by Seater bus via road travel is around 2h 0m (appx.). Book Now
Q. What is the cheapest bus fare between Biaora to Ujjain Travel on Goibibo?
A. The cheapest bus fare available between Biaora to Ujjain is ₹ 240. Book Now
Q. What are the popular bus operators currently serving buses for Biaora to Ujjain route?
A. Our top bus operators for Biaora to Ujjain bus route are: Ashok Travels, BK Yadav Travels, Balaji Travels AshokNagar, Betrwanti Travels, Bluecity Bus, DEV HIGH SPEED TRAVELS AND CARGO, GK Travels, Gajraj Travels, Hans Travels (I) Private Limited, Jay Shree Mahankal Travels Book Now
Boarding points in Biaora
- Biaora Bypass
- Sona By Sharma Travels Bus Stand
- Biaora
- Biaora bypass
- Biaora By Pass
- Sharma Travels Biaora
- Hotel Shiwani Biaora
- GUNA BYPASS BIAORA KAMLA LODGE KE SAMNE
- BHOPAL BYPASS CIRCLE BRIDGE KE NEECHE
- Biaora bus stand
Dropping points in Ujjain
- Nanakheda Bus Stand Ujjain
- Dewas Gate Bus Stand
- Nanakheda Bus Stand
- Dewas Gate
- PURPLE Office (Usha Travels) -Dewas Gate Bus Stand Ujjain, Madhya Pradesh Stand
- Shree Baba Gajraj Travels 15 Dewas Gate Bus Stand
- Nanakheda Bus Stand SKT Radhika Travels
- Gujrat Travels Dewas Gate Bus Stand Opposite Post Office
- Dewas Gate Usha Travels
- Dewas
Top routes from Biaora
- Biaora to Indore Bus
- Biaora to Bhopal Bus
- Biaora to Jaipur Bus
- Biaora to Delhi Bus
- Biaora to Guna Bus
- Biaora to Lucknow Bus
- Biaora to Gwalior Bus
- Biaora to Kanpur Bus
- Biaora to Jhansi Bus
- Biaora to Etawah Bus
- Biaora to Jodhpur Bus
- Biaora to Ujjain Bus
- Biaora to Datia Bus
- Biaora to Mathura Bus
- Biaora to Agra Bus
- Biaora to Lahar Bus
- Biaora to Allahabad Bus
- Biaora to Morena Bus
- Biaora to Shajapur Bus
- Biaora to Ashoknagar Bus
- Biaora to Kota Bus
- Biaora to Sarangpur Bus
- Biaora to Pandhurna Bus
- Biaora to Shivpuri (Madhya Pradesh) Bus
- Biaora to Orai Bus
- Biaora to Maksi Bus
- Biaora to Kalpi Bus
- Biaora to Unnao Bus
- Biaora to Bhognipur Bus
- Biaora to Dewas Bus
- Biaora to Ghaziabad Bus
- Biaora to Faizabad Bus
- Biaora to Kurawar Bus
- Biaora to Ajmer Bus
- Biaora to Mumbai Bus
- Biaora to Nagpur Bus
- Biaora to Nashik Bus
- Biaora to Lukwasa Bus
- Biaora to Multai Bus
- Biaora to Shyampur Bus
Top routes to Biaora
- Indore to Biaora Bus
- Bhopal to Biaora Bus
- Delhi to Biaora Bus
- Jaipur to Biaora Bus
- Lucknow to Biaora Bus
- Guna to Biaora Bus
- Agra to Biaora Bus
- Gwalior to Biaora Bus
- Kanpur to Biaora Bus
- Jodhpur to Biaora Bus
- Dewas to Biaora Bus
- Shajapur to Biaora Bus
- Ajmer to Biaora Bus
- Gorakhpur to Biaora Bus
- Kota to Biaora Bus
- Faizabad to Biaora Bus
- Ujjain to Biaora Bus
- Datia to Biaora Bus
- Kalpi to Biaora Bus
- Ashoknagar to Biaora Bus
- Lahar to Biaora Bus
- Morena to Biaora Bus
- Mathura to Biaora Bus
- Etawah to Biaora Bus
- Maksi to Biaora Bus
- Sarangpur to Biaora Bus
- Jhansi to Biaora Bus
- Shivpuri (Madhya Pradesh) to Biaora Bus
- Orai to Biaora Bus
- Unnao to Biaora Bus
- Aklera to Biaora Bus
- Tonk to Biaora Bus
- Jhalrapatan to Biaora Bus
- Narsinghgarh to Biaora Bus
- Mumbai to Biaora Bus
- Ghaziabad to Biaora Bus
- Lukwasa to Biaora Bus
- Khalilabad to Biaora Bus
- Kurawar to Biaora Bus
- Ruthiyai to Biaora Bus
Top routes to Ujjain
- Delhi to Ujjain Bus
- Indore to Ujjain Bus
- Bhopal to Ujjain Bus
- Pune to Ujjain Bus
- Ahmedabad to Ujjain Bus
- Mumbai to Ujjain Bus
- Jaipur to Ujjain Bus
- Gurgaon to Ujjain Bus
- Nagpur to Ujjain Bus
- Lucknow to Ujjain Bus
- Kanpur to Ujjain Bus
- Gwalior to Ujjain Bus
- Raipur to Ujjain Bus
- Omkareshwar to Ujjain Bus
- Nashik to Ujjain Bus
- Surat to Ujjain Bus
- Vadodara to Ujjain Bus
- Udaipur to Ujjain Bus
- Thane to Ujjain Bus
- Agra to Ujjain Bus
- Rajkot to Ujjain Bus
- Mandsaur to Ujjain Bus
- Kota to Ujjain Bus
- Jhansi to Ujjain Bus
- Kalyan to Ujjain Bus
- Noida to Ujjain Bus
- Aurangabad to Ujjain Bus
- Jabalpur to Ujjain Bus
- Mathura to Ujjain Bus
- Jodhpur to Ujjain Bus
- Dewas to Ujjain Bus
- Malegaon to Ujjain Bus
- Shajapur to Ujjain Bus
- Deoli to Ujjain Bus
- Biaora to Ujjain Bus
- Shirpur to Ujjain Bus
- Ajmer to Ujjain Bus
- Jhalrapatan to Ujjain Bus
- Baroda to Ujjain Bus
- Godhra to Ujjain Bus
Top routes from Ujjain
- Ujjain to Delhi Bus
- Ujjain to Bhopal Bus
- Ujjain to Indore Bus
- Ujjain to Pune Bus
- Ujjain to Mumbai Bus
- Ujjain to Ahmedabad Bus
- Ujjain to Jaipur Bus
- Ujjain to Omkareshwar Bus
- Ujjain to Gurgaon Bus
- Ujjain to Nagpur Bus
- Ujjain to Gwalior Bus
- Ujjain to Lucknow Bus
- Ujjain to Kanpur Bus
- Ujjain to Raipur Bus
- Ujjain to Nashik Bus
- Ujjain to Rajkot Bus
- Ujjain to Udaipur Bus
- Ujjain to Surat Bus
- Ujjain to Mandsaur Bus
- Ujjain to Vadodara Bus
- Ujjain to Agra Bus
- Ujjain to Jodhpur Bus
- Ujjain to Kota Bus
- Ujjain to Jabalpur Bus
- Ujjain to Varanasi Bus
- Ujjain to Aurangabad Bus
- Ujjain to Neemuch, Rajasthan Bus
- Ujjain to Mathura Bus
- Ujjain to Guna Bus
- Ujjain to Shivpuri (Madhya Pradesh) Bus
- Ujjain to Chittaurgarh Bus
- Ujjain to Ghaziabad Bus
- Ujjain to Deoli Bus
- Ujjain to Baroda Bus
- Ujjain to Faridabad Bus
- Ujjain to Susner Bus
- Ujjain to Jhalrapatan Bus
- Ujjain to Sendhwa Bus
- Ujjain to Betul Bus
- Ujjain to Julwania Bus
- Ujjain to Biaora Bus
Popular cities near Biaora
- Guna Bus
- Indore Bus
- Shivpuri (Madhya Pradesh) Bus
- Maksi Bus
- Shajapur Bus
- Ujjain Bus
- Dewas Bus
- Sarangpur Bus
- Jhansi Bus
- Bhopal Bus
- Gwalior Bus
- Badarwas Bus
- Karera Bus
- Binaganj Bus
- Jhalawar Bus
- Kolaras Bus
- Aklera Bus
- Kota Bus
- Jhalrapatan Bus
- Pachore (Madhya Pradesh) Bus
- Narsinghgarh Bus
- Ruthiyai Bus
- Kurawar Bus
- Lukwasa Bus
- Shyampur Bus
- Ashoknagar Bus
- Rajgarh(Madhya Pradesh) Bus
- Raghogarh (Madhya Pradesh) Bus
- Rajgarh Bus
- Bundi Bus
Popular cities near Ujjain
- Indore Bus
- Guna Bus
- Mandsaur Bus
- Jhalawar Bus
- Biaora Bus
- Jaora Bus
- Bhopal Bus
- Neemuch, Rajasthan Bus
- Shajapur Bus
- Dewas Bus
- Susner Bus
- Jhalrapatan Bus
- Kota Bus
- Nimbahera Bus
- Maksi Bus
- Sarangpur Bus
- Dhamnod Bus
- Soyat Bus
- Nagda (Madhya Pradesh) Bus
- Dhar Bus
- Ashta (Madhya Pradesh) Bus
- Ratlam Bus
- Badnawar Bus
- Sehore(M.P) Bus
- Omkareshwar Bus
- Unhel Bus
- Jhabua Bus
- Dahod Bus
- Malhargarh Bus
- Piplya Mandi Bus
Top Bus Operators Between Biaora and Ujjain
- Nizam Travels Bus
- M.Yadav Travels Bus
- RAO SAHAB TRAVELS PVT. LTD. Bus
- Maharani Travels Bus
- Gajraj Travels Bus
- Kamla Travels Bus
- Balaji Travel Point Bus
- ANSH TRAVELS Bus
- Amit Travels Bus
- Vikram Bus
- Gajraj bus service Bus
- Shatabdi Travels Gwalior Bus
- Jamna Travels (Delhi) Bus
- Mahadev Travels JOD Bus
- Shivam Travels Bus
- Sona Travels Bus
- Jai Bhawani Tours and Travels Bus
- Om namah shivaya travels Bus
- Yash Travels Indore Bus
- CHAUHAN TRAVELS Bus
- BT Travels Bus
- Jai Bajrang Travels Bus
- BSS COOL COOL TRAVELS Bus
- Sri Lakshmi Yatra Travels and Cargo Bus
- New Sahara Travels Bus
- Betrwanti Travels Bus
- MAHADEV EXPRESS Bus
- M R Travels Bus
- Gagan Travels Shivpuri Bus
- P.T. Radhey Travels Bus
- Balaji Travels AshokNagar Bus
- SHAGUN CARGO & TRAVELS Bus
- DEV HIGH SPEED TRAVELS AND CARGO Bus
- GK Travels Bus
- Neeraj Travels (Sutra Seva) Bus
- KISSAN TRAVELS PILANI Bus
- Gwalior Travels Bus
- Prasanna Purple Mobility Solutions Pvt Ltd Bus
- Flybus Bus
- MahaLaxmi Bus Service Delhi Bus
- FIZA SMART BUS
- Sanjay Travels Bus
- Shatabdi Travels Bus
- Jay Shree Mahankal Travels Bus
- Raj Laxmi Travels Bus
- Sunil Tour and Travels Bus
- Shri Shyam Travels Indore Bus
- Pitambra Travels Bus
- International Tourist Centre Bus
- Krishna Bus (Sai Yatra Company) Bus
- Amaltas Travels Bus
- SKT Radhika Travels Bus
- Sanjay Travels Bus
- Shivam Travels Bus
- Ashok Tour And Travels Bus
- RS Yadav Smart Bus
- Betwa Tourist Bus service Bus
- Ganeshwari Travels Bus
- Shivansh travels Bus
- Raj Kalpana Travels Pvt.Ltd Bus
- Maa Vaishno Travels Bus
- Ashok Travels Bus
- Ajuman Holidays Bus
- Luxuria Holidays Bus
Top Bus Operators from Biaora
- Biaora to Indore CHARTERED BUS PRIVATE LIMITED Bus
- Biaora to Bhopal Rayeen Travels Bus
- Biaora to Delhi Kamla Kalpana Travels Bus
- Biaora to Jaipur Babu Travels Bus
- Biaora to Guna Kamla Kalpana Travels Bus
- Biaora to Etawah Amaltas Travels Bus
- Biaora to Jodhpur M R Travels Bus
- Biaora to Lucknow Betrwanti Travels Bus
- Biaora to Gwalior Hans Travels Bus
- Biaora to Mathura Kamla Kalpana Travels Bus
- Biaora to Lahar MSK Travels Bus
- Biaora to Allahabad Kamla Kalpana Travels Bus
- Biaora to Kanpur Hans Travels Bus
- Biaora to Datia Rai Bus Service Ashok Travels Jhansi Bus
Top Bus Operators to Ujjain
Hotels in Biaora
Hotels in Ujjain
Seater Bus from Biaora
- Biaora to Indore Seater Bus
- Biaora to Bhopal Seater Bus
- Biaora to Jaipur Seater Bus
- Biaora to Delhi Seater Bus
- Biaora to Guna Seater Bus
- Biaora to Lucknow Seater Bus
- Biaora to Gwalior Seater Bus
- Biaora to Kanpur Seater Bus
- Biaora to Jhansi Seater Bus
- Biaora to Etawah Seater Bus
- Biaora to Jodhpur Seater Bus
- Biaora to Datia Seater Bus
- Biaora to Mathura Seater Bus
- Biaora to Agra Seater Bus
- Biaora to Lahar Seater Bus
- Biaora to Allahabad Seater Bus
- Biaora to Morena Seater Bus
- Biaora to Shajapur Seater Bus
- Biaora to Ashoknagar Seater Bus
- Biaora to Kota Seater Bus
- Biaora to Sarangpur Seater Bus
- Biaora to Pandhurna Seater Bus
- Biaora to Shivpuri (Madhya Pradesh) Seater Bus
- Biaora to Orai Seater Bus
- Biaora to Maksi Seater Bus
- Biaora to Kalpi Seater Bus
- Biaora to Unnao Seater Bus
- Biaora to Bhognipur Seater Bus
- Biaora to Dewas Seater Bus
- Biaora to Ghaziabad Seater Bus
- Biaora to Faizabad Seater Bus
- Biaora to Kurawar Seater Bus
- Biaora to Ajmer Seater Bus
- Biaora to Mumbai Seater Bus
- Biaora to Nagpur Seater Bus
- Biaora to Nashik Seater Bus
- Biaora to Lukwasa Seater Bus
- Biaora to Multai Seater Bus
- Biaora to Shyampur Seater Bus
Seater Bus to Ujjain
- Delhi to Ujjain Seater Bus
- Indore to Ujjain Seater Bus
- Bhopal to Ujjain Seater Bus
- Pune to Ujjain Seater Bus
- Ahmedabad to Ujjain Seater Bus
- Mumbai to Ujjain Seater Bus
- Jaipur to Ujjain Seater Bus
- Gurgaon to Ujjain Seater Bus
- Nagpur to Ujjain Seater Bus
- Lucknow to Ujjain Seater Bus
- Kanpur to Ujjain Seater Bus
- Gwalior to Ujjain Seater Bus
- Raipur to Ujjain Seater Bus
- Omkareshwar to Ujjain Seater Bus
- Nashik to Ujjain Seater Bus
- Surat to Ujjain Seater Bus
- Vadodara to Ujjain Seater Bus
- Udaipur to Ujjain Seater Bus
- Thane to Ujjain Seater Bus
- Agra to Ujjain Seater Bus
- Rajkot to Ujjain Seater Bus
- Mandsaur to Ujjain Seater Bus
- Kota to Ujjain Seater Bus
- Jhansi to Ujjain Seater Bus
- Kalyan to Ujjain Seater Bus
- Noida to Ujjain Seater Bus
- Aurangabad to Ujjain Seater Bus
- Jabalpur to Ujjain Seater Bus
- Mathura to Ujjain Seater Bus
- Jodhpur to Ujjain Seater Bus
- Dewas to Ujjain Seater Bus
- Malegaon to Ujjain Seater Bus
- Shajapur to Ujjain Seater Bus
- Deoli to Ujjain Seater Bus
- Shirpur to Ujjain Seater Bus
- Ajmer to Ujjain Seater Bus
- Jhalrapatan to Ujjain Seater Bus
- Baroda to Ujjain Seater Bus
- Godhra to Ujjain Seater Bus
Popular Volvo City Buses
- Nagpur Volvo Bus
- Mathura Volvo Bus
- Betul Volvo Bus
- Thane Volvo Bus
- Pune Volvo Bus
- Kalpi Volvo Bus
- Vadodara Volvo Bus
- Morena Volvo Bus
- Aklera Volvo Bus
- Kanpur Volvo Bus
- Datia Volvo Bus
- Kota Volvo Bus
- Varanasi Volvo Bus
- Indore Volvo Bus
- Ujjain Volvo Bus
- Lucknow Volvo Bus
- Dewas Volvo Bus
- Shajapur Volvo Bus
- Biaora Volvo Bus
- Shyampur Volvo Bus
- Jhalrapatan Volvo Bus
- Deoli Volvo Bus
- Jhansi Volvo Bus
- Noida Volvo Bus
- Guna Volvo Bus
- Kurawar Volvo Bus
- Rajkot Volvo Bus
- Julwania Volvo Bus
- Surat Volvo Bus
- Shivpuri (Madhya Pradesh) Volvo Bus
- Godhra Volvo Bus
- Ashoknagar Volvo Bus
- Baroda Volvo Bus
- Chittaurgarh Volvo Bus
- Susner Volvo Bus
- Jaipur Volvo Bus
- Neemuch, Rajasthan Volvo Bus
- Agra Volvo Bus
- Jodhpur Volvo Bus
- Udaipur Volvo Bus
- Gurgaon Volvo Bus
- Sarangpur Volvo Bus
- Faizabad Volvo Bus
- Bhopal Volvo Bus
- Omkareshwar Volvo Bus
- Bhognipur Volvo Bus
- Khalilabad Volvo Bus
- Ghaziabad Volvo Bus
- Pandhurna Volvo Bus
- Gwalior Volvo Bus
- Delhi Volvo Bus
- Mumbai Volvo Bus
- Nashik Volvo Bus
- Kalyan Volvo Bus
- Ruthiyai Volvo Bus
- Ajmer Volvo Bus
- Shirpur Volvo Bus
- Lukwasa Volvo Bus
- Jabalpur Volvo Bus
- Tonk Volvo Bus
- Gorakhpur Volvo Bus
- Raipur Volvo Bus
- Lahar Volvo Bus
- Mandsaur Volvo Bus
- Narsinghgarh Volvo Bus
- Orai Volvo Bus
- Unnao Volvo Bus
- Allahabad Volvo Bus
- Ahmedabad Volvo Bus
- Maksi Volvo Bus
- Sendhwa Volvo Bus
- Multai Volvo Bus
- Aurangabad Volvo Bus
- Malegaon Volvo Bus
- Etawah Volvo Bus
- Faridabad Volvo Bus