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
Bilaspur (Haryana) To Lucknow Bus
- Goibibo
- Bus Booking
- Popular Bus Routes
- Bus from Bilaspur (Haryana) to Lucknow
View More
| Bus Details | Time and Duration | Price | |
|---|---|---|---|
OJAS TOUR AND TRAVEL A/C Seater / Sleeper (2+1) 4.8/5 | 17:25 SUKH SAGAR VAISHNAV HOTEL 12h 5m 05:30 19th Feb Kamta Chouraha Lucknow | ₹1599 | SELECT SEAT 23 window seat 39 seats left ₹ 1599 |
| |||
OJAS TOUR AND TRAVEL A/C Seater / Sleeper (2+1) 4.8/5 | 18:50 Bilaspur chouraha Service road NH-8 13h 40m 08:30 19th Feb Transport Nagar | ₹1999 | SELECT SEAT 24 window seat 40 seats left ₹ 1999 |
|
Route Information for Bilaspur (Haryana) to Lucknow Bus
| Distance | 524 km |
| Bus Depart From | Bilaspur (Haryana) |
| Bus Arrives In | Lucknow |
| Earliest Bus | 17:25 |
| Last Bus | 18:50 |
| Avg. Bus Duration | 12h 5m |
| Cheapest Bus Ticket | Rs. 1599 |
| Bus Operators | OJAS TOUR AND TRAVEL |
How to Book Bus Tickets from Bilaspur (haryana) to Lucknow
Booking your bus tickets from Bilaspur (haryana) to Lucknow on Goibibo is a straightforward and efficient process. Follow these essential steps to secure your travel:
- Visit the Goibibo bus website OR, Open the Goibibo app on your Android/iOS device
- Enter your travel details: Fill in the following information:
- Source city: Bilaspur (haryana)
- Destination city: Lucknow
- Date of travel: Select your preferred travel date.
- Browse bus options: Review a comprehensive list of available private and government buses. Check details such as seat availability, fares/prices, ratings, boarding/dropping points, operator names, and timings.
- Apply filters: Refine your search by selecting options like AC/non-AC, sleeper/Volvo, departure time, and operator.
- Choose your seat & boarding point: Select your desired seat and boarding location, then proceed to the next step.
- Fill in passenger details: Provide the necessary traveler information, including contact number and email.
- Make payment: Complete your booking securely using UPI, credit/debit cards, digital wallets, or GoCash.
- Get confirmation: Instantly receive your e-ticket or M-ticket via SMS and email.
By following these steps, you can ensure a hassle-free booking experience on Goibibo.
Book a Bilaspur (Haryana) to Lucknow Bus Online on GoIbibo
You can now book your Bilaspur (Haryana) to Lucknow bus easily with a simplified GoIbibo booking portal. Choose to customize your booking as per your type of bus and facilities available. You can make your booking either through the GoIbibo official website or app as per convenience and commerce your trip suitably.
Cover your Bilaspur (Haryana) to Lucknow trip now on your choice of bus from available options like sleeper, seater, semi-sleeper, AC, non-AC, Volvo buses and more. Choose a bus to Lucknow from Bilaspur (Haryana) as per your timing and make quick booking.
Bilaspur (Haryana) to Lucknow Time and Duration
Covering a distance of 524, the Bilaspur (Haryana) to Lucknow journey takes around 12h 5m to complete. The total time taken can vary based on the route chosen, the operator you are traveling with and the total number of stoppages on the route. Travelers have an option to choose between private and state owned buses to book their tickets with.
Bilaspur (Haryana) to Lucknow Bus Ticket Price
The Bilaspur (Haryana) to Lucknow bus ticket prices are decently set to keep travel between the two cities affordable. The fare payable for these buses vary with the type of bus selected and the available amenities. You can book bus tickets between Bilaspur (Haryana) and Lucknow with the lowest bus fare starting from 1599. Moreover, the first bus is available for 1599 and the last bus’ fare is 1999.
Bilaspur (Haryana) to Lucknow Bus Time
With buses running between Bilaspur (Haryana) and Lucknow frequently throughout the day, finding a suitable time for bus booking should not be a problem for you. The first bus for the day can be booked at 17:25 and you can book the last bus any day by up to 18:50.
Booking Bilaspur (Haryana) to Lucknow Bus with GoIbibo
Booking your preferred bus service between Bilaspur (Haryana) and Lucknow is simplified with the help of the easy online portal that comes with convenient navigation. Passengers can book their buses as per their customization requirements. Go through user ratings and reviews from precious passengers before finalizing your bus service. For any queries regarding your trip, reach out to GoIbibo’s 24x7 customer care service.
FAQ - Bilaspur (Haryana) to Lucknow Bus Ticket Booking
Q. How many buses are running between Bilaspur (Haryana) to Lucknow on the daily basis?
A. 2 buses are running between Bilaspur (Haryana) to Lucknow. Out of which 2 AC Buses and 0 Non-AC Buses.
Q. When does the first Bilaspur (Haryana) to Lucknow bus leaves for the day?
A. The first bus for Bilaspur (Haryana) to Lucknow bus route leaves at 17:25 and fare for this bus is ₹ 1599.
Q. When does the last bus leaves for Lucknow from Bilaspur (Haryana)?
A. he last bus for Bilaspur (Haryana) to Lucknow route leaves at 18:50. The ticket price for this bus is ₹1999.
Q. What are the boarding points for Bilaspur (Haryana) to Lucknow Bus service?
A. Boarding points for this bus route in Bilaspur (Haryana) are SUKH SAGAR VAISHNAV HOTEL, Bilaspur chouraha Service road NH-8.
Q. What are the dropping points in Lucknow for the Bilaspur (Haryana) Lucknow bus route?
A. Dropping points in Lucknow for this route are Zero Point Lucknow, Transport Nagar, Kamta Chouraha Lucknow, Alambagh.
Q. Who are the popular operators on the Bilaspur (Haryana) to Lucknow bus route?
A. Top operators on the Bilaspur (Haryana) to Lucknow bus route are OJAS TOUR AND TRAVEL.
Q. How many buses are GPS enabled?
A. Total 1 buses are GPS enabled on this route so that anyone can track his bus.
Q. What is the minimum bus ticket fare from Bilaspur (Haryana) to Lucknow route?
A. The minimum bus ticket price for Bilaspur (Haryana) to Lucknow route is Rs 1599 Only.
Q. What is the maximum bus ticket price from Bilaspur (Haryana) to Lucknow route?
A. The maximum bus ticket price for Bilaspur (Haryana) to Lucknow route is Rs 1999.
Q. How much time it takes to travel by bus from Bilaspur (Haryana) to Lucknow?
A. Approximately it will take 12h 5m to reach Bilaspur (Haryana) to Lucknow by bus.
Q. Which is the fastest bus on Bilaspur (Haryana) to Lucknow route?
A. From Bilaspur (Haryana) to Lucknow,the fastest bus for this route is OJAS TOUR AND TRAVEL.
Q. Which bus operators offer the cheapest fare from Bilaspur (Haryana) to Lucknow route?
A. While travelling from Bilaspur (Haryana) to Lucknow ,OJAS TOUR AND TRAVEL provide the cheapest fare.
Boarding points in Bilaspur (haryana)
- SUKH SAGAR VAISHNAV HOTEL
- Bilaspur chouraha Service road NH-8
Dropping points in Lucknow
- Zero Point Lucknow
- Transport Nagar
- Kamta Chouraha Lucknow
- Alambagh
Top routes to Lucknow
- Ujjain to Lucknow Bus
- Gwalior to Lucknow Bus
- Bareilly to Lucknow Bus
- Chandigarh to Lucknow Bus
- Kathgodam to Lucknow Bus
- Azamgarh to Lucknow Bus
- Mau to Lucknow Bus
- Meerut to Lucknow Bus
- Patna to Lucknow Bus
- Rudrapur to Lucknow Bus
- Faridabad to Lucknow Bus
- Delhi Airport to Lucknow Bus
- Ayodhya to Lucknow Bus
- Kanpur to Lucknow Bus
- Basti to Lucknow Bus
- Barabanki to Lucknow Bus
- Khalilabad to Lucknow Bus
- Unnao to Lucknow Bus
- Faizabad to Lucknow Bus
- Jarwal Road to Lucknow Bus
- Bahraich to Lucknow Bus
- Nawabganj to Lucknow Bus
- Jewar to Lucknow Bus
- Harraiya to Lucknow Bus
- Bharatpur to Lucknow Bus
- Mehandipur Balaji Temple to Lucknow Bus
- Sitapur to Lucknow Bus
- Bhelsar to Lucknow Bus
- Dausa to Lucknow Bus
- Vrindavan to Lucknow Bus
- Kaptanganj to Lucknow Bus
- Gonda to Lucknow Bus
- Balpur(Uttar Pradesh) to Lucknow Bus
- Sultanpur (Uttar Pradesh) to Lucknow Bus
- Baskhari to Lucknow Bus
- Atraulia to Lucknow Bus
- Kannauj to Lucknow Bus
- Mohammadabad to Lucknow Bus
- Jagdishpur(Uttar Pradesh) to Lucknow Bus
Top routes from Lucknow
- Lucknow to Delhi Bus
- Lucknow to Jaipur Bus
- Lucknow to Noida Bus
- Lucknow to Gurgaon Bus
- Lucknow to Varanasi Bus
- Lucknow to Agra Bus
- Lucknow to Greater Noida Bus
- Lucknow to Indore Bus
- Lucknow to Dehradun Bus
- Lucknow to Mathura Bus
- Lucknow to Gorakhpur Bus
- Lucknow to Allahabad Bus
- Lucknow to Kota Bus
- Lucknow to Ghaziabad Bus
- Lucknow to Ballia Bus
- Lucknow to Haridwar Bus
- Lucknow to Patna Bus
- Lucknow to Haldwani Bus
- Lucknow to Gwalior Bus
- Lucknow to Jhansi Bus
- Lucknow to Ujjain Bus
- Lucknow to Bhopal Bus
- Lucknow to Azamgarh Bus
- Lucknow to Ghazipur Bus
- Lucknow to Meerut Bus
- Lucknow to Chandigarh Bus
- Lucknow to Bareilly Bus
- Lucknow to Kathgodam Bus
- Lucknow to Jaunpur Bus
- Lucknow to Mau Bus
- Lucknow to Vrindavan Bus
- Lucknow to Sultanpur (Uttar Pradesh) Bus
- Lucknow to Raebareli Bus
- Lucknow to Gonda Bus
- Lucknow to Jewar Bus
- Lucknow to Baskhari Bus
- Lucknow to Sidhauli(Uttar Pradesh) Bus
- Lucknow to Atraulia Bus
- Lucknow to Jagdishpur(Uttar Pradesh) Bus
- Lucknow to Orai Bus
Popular cities near Bilaspur (Haryana)
Popular cities near Lucknow
- Ayodhya Bus
- Agra Bus
- Basti Bus
- Barabanki Bus
- Kanpur Bus
- Gorakhpur Bus
- Khalilabad Bus
- Faizabad Bus
- Unnao Bus
- Azamgarh Bus
- Bahraich Bus
- Jarwal Road Bus
- Sitapur Bus
- Mathura Bus
- Bhelsar Bus
- Balpur(Uttar Pradesh) Bus
- Nawabganj Bus
- Kaptanganj Bus
- Sultanpur (Uttar Pradesh) Bus
- Allahabad Bus
- Raebareli Bus
- Gonda Bus
- Sidhauli(Uttar Pradesh) Bus
- Baskhari Bus
- Jagdishpur(Uttar Pradesh) Bus
- Atraulia Bus
- Kannauj Bus
- Bareilly Bus
- Akbarpur (Kanpur Dehat) Bus
- Orai Bus
Top Bus Operators Between Bilaspur (Haryana) and Lucknow
Top Bus Operators from Bilaspur (Haryana)
- Bilaspur (Haryana) to Sikar IBS Tour and Travels Bus
- Bilaspur (Haryana) to Lucknow OJAS TOUR AND TRAVEL Bus
- Bilaspur (Haryana) to Agra OJAS TOUR AND TRAVEL Bus
- Bilaspur (Haryana) to Rewari IBS Tour and Travels Bus
- Bilaspur (Haryana) to Neem Ka Thana IBS Tour and Travels Bus
- Bilaspur (Haryana) to Jhunjhunu IBS Tour and Travels Bus
- Bilaspur (Haryana) to Behror (Rajasthan) IBS Tour and Travels Bus
- Bilaspur (Haryana) to Gorakhpur OJAS TOUR AND TRAVEL Bus
- Bilaspur (Haryana) to Shahpura Suraj Travel And Cargo Services Bus
- Bilaspur (Haryana) to Sujangarh IBS Tour and Travels Bus
Top Bus Operators to Lucknow
Airport Routes from Lucknow
Airport Routes to Lucknow
Bus Stands
- Kashmiri Gate, Delhi Bus
- Isbt, Dehradun Bus
- Majestic Bus
- Ksrtc Bus Stand, Mysore Bus
- Anand Vihar Bus
- Periyar Bus Stand, Madurai Bus
- Thane West, Mumbai Bus
- Omni Bus Stand, Coimbatore Bus
- Salem New Bus Stand Bus
- Ksrtc Bus Stand, Ernakulam Bus
- Satellite Bus Stand, Bangalore Bus
- Gandhipuram Bus
- Shivaji Nagar, Pune Bus
- Koyambedu Bus
- Tambaram, Chennai Bus
- Swargate, Pune Bus
- Alambagh Bus
- Ksrtc Bus Stand, Thrissur Bus
- KSRTC Bus Stand, Davanagere Bus
- Poonamallee Bus
- Kalasipalyam Bus
- Navlakha Bus
- Geeta Mandir Bus Stand Bus
- Sindhi Camp Bus
- Vallabhnagar, Pune Bus
- Mattuthavani Bus
- Ukkadam Bus
- ST Bus Stand, Bhuj Bus
- Gandhinagar, Bangalore Bus
- T Nagar, Chennai Bus
- Shanthinagar Bus
- Chengalpattu, Chennai Bus
- Sarai Kale Khan Bus
Category Services
- AC Bus
- Volvo AC Seater Sleeper Bus
- Non AC Bus
- Non AC Sleeper Bus
- Seater Bus
- Sleeper Bus
- Semi Sleeper Bus
- Seater Sleeper Bus
- AC Seater Bus
- AC Sleeper Bus
- NON-AC Seater Bus
- AC Semi-Sleeper Bus
- NON-AC Semi-Sleeper Bus
- NON-AC Seater Sleeper Bus
- AC Seater Sleeper Bus
- Volvo Bus
- Bharat Benz Bus
- Scania Bus
- Volvo AC Semi-Sleeper Bus
- Volvo AC Seater Bus
- Volvo AC Sleeper Bus
- Mercedes Benz Bus
Hotels in Lucknow
Popular Bus Types
- Bilaspur (Haryana) to Lucknow Volvo AC Seater Sleeper Bus
- Lucknow to Bilaspur (Haryana) Volvo AC Seater Sleeper Bus
- Bilaspur (Haryana) to Lucknow Volvo AC Semi-Sleeper Bus
- Lucknow to Bilaspur (Haryana) Volvo AC Semi-Sleeper Bus
- Bilaspur (Haryana) to Lucknow Volvo AC Seater Bus
- Lucknow to Bilaspur (Haryana) Volvo AC Seater Bus
- Bilaspur (Haryana) to Lucknow Volvo AC Sleeper Bus
- Lucknow to Bilaspur (Haryana) Volvo AC Sleeper Bus
- Bilaspur (Haryana) to Lucknow AC Semi-Sleeper Bus
- Lucknow to Bilaspur (Haryana) AC Semi-Sleeper Bus
- Bilaspur (Haryana) to Lucknow NON-AC Semi-Sleeper Bus
- Lucknow to Bilaspur (Haryana) NON-AC Semi-Sleeper Bus
- Bilaspur (Haryana) to Lucknow NON-AC Seater Sleeper Bus
- Lucknow to Bilaspur (Haryana) NON-AC Seater Sleeper Bus
- Bilaspur (Haryana) to Lucknow AC Seater Sleeper Bus
- Lucknow to Bilaspur (Haryana) AC Seater Sleeper Bus
- Bilaspur (Haryana) to Lucknow NON-AC Seater Bus
- Lucknow to Bilaspur (Haryana) NON-AC Seater Bus
- Bilaspur (Haryana) to Lucknow NON-AC Sleeper Bus
- Lucknow to Bilaspur (Haryana) NON-AC Sleeper Bus
- Bilaspur (Haryana) to Lucknow AC Seater Bus
- Lucknow to Bilaspur (Haryana) AC Seater Bus
- Bilaspur (Haryana) to Lucknow AC Sleeper Bus
- Lucknow to Bilaspur (Haryana) AC Sleeper Bus
- Bilaspur (Haryana) to Lucknow Seater Sleeper Bus
- Lucknow to Bilaspur (Haryana) Seater Sleeper Bus
- Bilaspur (Haryana) to Lucknow Semi-Sleeper Bus
- Lucknow to Bilaspur (Haryana) Semi-Sleeper Bus
- Bilaspur (Haryana) to Lucknow Volvo Bus
- Lucknow to Bilaspur (Haryana) Volvo Bus
- Bilaspur (Haryana) to Lucknow Bharatbenz Bus
- Lucknow to Bilaspur (Haryana) Bharatbenz Bus
- Bilaspur (Haryana) to Lucknow Scania Bus
- Lucknow to Bilaspur (Haryana) Scania Bus
- Bilaspur (Haryana) to Lucknow Mercedes-Benz Bus
- Lucknow to Bilaspur (Haryana) Mercedes-Benz Bus
- Bilaspur (Haryana) to Lucknow AC Bus
- Lucknow to Bilaspur (Haryana) AC Bus
- Bilaspur (Haryana) to Lucknow NON-AC Bus
- Lucknow to Bilaspur (Haryana) NON-AC Bus
- Bilaspur (Haryana) to Lucknow Seater Bus
- Lucknow to Bilaspur (Haryana) Seater Bus
- Bilaspur (Haryana) to Lucknow Sleeper Bus
- Lucknow to Bilaspur (Haryana) Sleeper Bus
Popular Volvo Bus Routes To Lucknow
- Ujjain to Lucknow Volvo Bus
- Gwalior to Lucknow Volvo Bus
- Bareilly to Lucknow Volvo Bus
- Chandigarh to Lucknow Volvo Bus
- Kathgodam to Lucknow Volvo Bus
- Azamgarh to Lucknow Volvo Bus
- Mau to Lucknow Volvo Bus
- Meerut to Lucknow Volvo Bus
- Patna to Lucknow Volvo Bus
- Rudrapur to Lucknow Volvo Bus
- Faridabad to Lucknow Volvo Bus
- Delhi Airport to Lucknow Volvo Bus
- Ayodhya to Lucknow Volvo Bus
- Kanpur to Lucknow Volvo Bus
- Basti to Lucknow Volvo Bus
- Barabanki to Lucknow Volvo Bus
- Khalilabad to Lucknow Volvo Bus
- Unnao to Lucknow Volvo Bus
- Faizabad to Lucknow Volvo Bus
- Jarwal Road to Lucknow Volvo Bus
- Bahraich to Lucknow Volvo Bus
- Nawabganj to Lucknow Volvo Bus
- Jewar to Lucknow Volvo Bus
- Harraiya to Lucknow Volvo Bus
- Bharatpur to Lucknow Volvo Bus
- Mehandipur Balaji Temple to Lucknow Volvo Bus
- Sitapur to Lucknow Volvo Bus
- Bhelsar to Lucknow Volvo Bus
- Dausa to Lucknow Volvo Bus
- Vrindavan to Lucknow Volvo Bus
- Kaptanganj to Lucknow Volvo Bus
- Gonda to Lucknow Volvo Bus
- Balpur(Uttar Pradesh) to Lucknow Volvo Bus
- Sultanpur (Uttar Pradesh) to Lucknow Volvo Bus
- Baskhari to Lucknow Volvo Bus
- Atraulia to Lucknow Volvo Bus
- Kannauj to Lucknow Volvo Bus
- Mohammadabad to Lucknow Volvo Bus
- Jagdishpur(Uttar Pradesh) to Lucknow Volvo Bus
Popular Volvo Bus Routes From Lucknow
- Lucknow to Delhi Volvo Bus
- Lucknow to Jaipur Volvo Bus
- Lucknow to Noida Volvo Bus
- Lucknow to Gurgaon Volvo Bus
- Lucknow to Varanasi Volvo Bus
- Lucknow to Agra Volvo Bus
- Lucknow to Greater Noida Volvo Bus
- Lucknow to Indore Volvo Bus
- Lucknow to Dehradun Volvo Bus
- Lucknow to Mathura Volvo Bus
- Lucknow to Gorakhpur Volvo Bus
- Lucknow to Allahabad Volvo Bus
- Lucknow to Kota Volvo Bus
- Lucknow to Ghaziabad Volvo Bus
- Lucknow to Ballia Volvo Bus
- Lucknow to Haridwar Volvo Bus
- Lucknow to Patna Volvo Bus
- Lucknow to Haldwani Volvo Bus
- Lucknow to Gwalior Volvo Bus
- Lucknow to Jhansi Volvo Bus
- Lucknow to Ujjain Volvo Bus
- Lucknow to Bhopal Volvo Bus
- Lucknow to Azamgarh Volvo Bus
- Lucknow to Ghazipur Volvo Bus
- Lucknow to Meerut Volvo Bus
- Lucknow to Chandigarh Volvo Bus
- Lucknow to Bareilly Volvo Bus
- Lucknow to Kathgodam Volvo Bus
- Lucknow to Jaunpur Volvo Bus
- Lucknow to Mau Volvo Bus
- Lucknow to Vrindavan Volvo Bus
- Lucknow to Sultanpur (Uttar Pradesh) Volvo Bus
- Lucknow to Raebareli Volvo Bus
- Lucknow to Gonda Volvo Bus
- Lucknow to Jewar Volvo Bus
- Lucknow to Baskhari Volvo Bus
- Lucknow to Sidhauli(Uttar Pradesh) Volvo Bus
- Lucknow to Atraulia Volvo Bus
- Lucknow to Jagdishpur(Uttar Pradesh) Volvo Bus
- Lucknow to Orai Volvo Bus
Popular Volvo City Buses
- Azamgarh Volvo Bus
- Meerut Volvo Bus
- Mathura Volvo Bus
- Mehandipur Balaji Temple Volvo Bus
- Barabanki Volvo Bus
- Mau Volvo Bus
- Agra Volvo Bus
- Chandigarh Volvo Bus
- Jarwal Road Volvo Bus
- Kathgodam Volvo Bus
- Varanasi Volvo Bus
- Sitapur Volvo Bus
- Delhi Volvo Bus
- Noida Volvo Bus
- Ghazipur Volvo Bus
- Jewar Volvo Bus
- Jaunpur Volvo Bus
- Khalilabad Volvo Bus
- Haridwar Volvo Bus
- Kota Volvo Bus
- Lucknow Volvo Bus
- Delhi Airport Volvo Bus
- Ballia Volvo Bus
- Sidhauli(Uttar Pradesh) Volvo Bus
- Bhelsar Volvo Bus
- Basti Volvo Bus
- Bhopal Volvo Bus
- Gorakhpur Volvo Bus
- Faizabad Volvo Bus
- Bareilly Volvo Bus
- Bahraich Volvo Bus
- Ayodhya Volvo Bus
- Kannauj Volvo Bus
- Greater Noida Volvo Bus
- Sultanpur (Uttar Pradesh) Volvo Bus
- Indore Volvo Bus
- Bharatpur Volvo Bus
- Baskhari Volvo Bus
- Ujjain Volvo Bus
- Jhansi Volvo Bus
- Jaipur Volvo Bus
- Balpur(Uttar Pradesh) Volvo Bus
- Mohammadabad Volvo Bus
- Dehradun Volvo Bus
- Kaptanganj Volvo Bus
- Dausa Volvo Bus
- Nawabganj Volvo Bus
- Gurgaon Volvo Bus
- Unnao Volvo Bus
- Allahabad Volvo Bus
- Atraulia Volvo Bus
- Orai Volvo Bus
- Faridabad Volvo Bus
- Kanpur Volvo Bus
- Gonda Volvo Bus
- Patna Volvo Bus
- Vrindavan Volvo Bus
- Raebareli Volvo Bus
- Haldwani Volvo Bus
- Gwalior Volvo Bus
- Ghaziabad Volvo Bus
- Rudrapur Volvo Bus
- Jagdishpur(Uttar Pradesh) Volvo Bus
- Harraiya Volvo Bus