Edit
Edit
March 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
- 29
- 30
- 31
Chittoor to Tekkali Volvo AC Semi-Sleeper Bus
- Goibibo
- Bus Ticket Booking
- Bus from Chittoor to Tekkali
- Chittoor to Tekkali Volvo AC Semi-Sleeper Bus
Showing19 buses
Previous DayNext Day
Sort by:
BESTRATINGDEPARTUREARRIVALFASTESTCHEAPEST
Chittoor to Tekkali Other Buses
Shyamoli Paribahan Pvt Ltd Bharat Benz A/C Seater /Sleeper (2+1) 4.2/5
| 15:15 Chittoor by-pass 15h 15m 06:30 24th Mar Tekkali | ₹1262 | SELECT SEAT 25 window seat 41 seats left ₹ 1262 |
| |||
Express Line VE A/C Seater / Sleeper (2+1) 4.1/5
| 17:30 Chittoor Bypass 15h 15m 08:45 24th Mar Tekali Bypass On highway near jagati metta junction | ₹1671 ₹1771 | SELECT SEAT 21 window seat 35 seats left ₹ 1771 ₹ 1671 |
| |||
Shyamoli Paribahan Pvt Ltd Bharat Benz A/C Seater /Sleeper (2+1) 4.2/5
| 12:30 Chittoor by-pass 15h 15m 03:45 24th Mar Tekkali | ₹1624 | SELECT SEAT 20 window seat 35 seats left ₹ 1624 |
| |||
Shyamoli Paribahan Pvt Ltd Bharat Benz A/C Seater /Sleeper (2+1) 4.2/5
| 17:30 Chittoor by-pass 15h 15m 08:45 24th Mar Tekkali | ₹1510 | SELECT SEAT 15 window seat 28 seats left ₹ 1510 |
| |||
Shyamoli Paribahan Pvt Ltd Bharat Benz A/C Sleeper (2+1) 4.2/5
| 19:30 Chittoor by-pass 15h 15m 10:45 24th Mar Tekkali | ₹7999 | SELECT SEAT 23 window seat 36 seats left ₹ 7999 |
Ranadeep Travels A/C Sleeper (2+1) 3.8/5 | 13:30 CHITOOR BYPASS 18h 45m 08:15 24th Mar Tekkali Bypass | ₹2312 ₹2499 | SELECT SEAT 15 window seat 27 seats left ₹ 2499 ₹ 2312 |
| |||
Gopinath Travels A/C Seater / Sleeper (2+1) 3.6/5 | 17:00 Chittoor By Pass Infront Of Hotel Heavn 16h 30m 09:30 24th Mar Tekali Bypass On highway near jagati metta junction | ₹1800 | SELECT SEAT 18 window seat 36 seats left ₹ 1800 |
| |||
Ranadeep Travels A/C Sleeper (2+1) 3.8/5 | 18:45 CHITOOR BYPASS 18h 45m 13:30 24th Mar Tekkali Bypass | ₹2689 | SELECT SEAT 16 window seat 28 seats left ₹ 2689 |
Sri Keerthana Sai Travels A/C Seater / Sleeper (2+1) 3.4/5 | 12:15 CHITTOOR BY-PASS 20h 25m 08:40 24th Mar TEKKALI BYPASS | ₹2460 ₹2590 | SELECT SEAT 19 window seat 34 seats left ₹ 2590 ₹ 2460 |
| |||
Shree Manikanta Travels A/C Seater / Sleeper (2+1) 3.7/5 | 17:20 By Pass Coffe day 17h 40m 11:00 24th Mar Tekkali | ₹1979 | SELECT SEAT 28 window seat 48 seats left ₹ 1979 |
|
FAQs About Volvo AC Semi-Sleeper Buses from Chittoor to Tekkali
Q. How many Volvo AC Semi-Sleeper buses currently operating from Chittoor to Tekkali?
A. There are 0 Volvo AC Semi-Sleeper buses currently running from Chittoor to Tekkali currently. Book Now
Q. What is the avg time taken by Volvo AC Semi-Sleeper bus for Chittoor Tekkali Journey?
A. The time taken for Chittoor to Tekkali by Volvo AC Semi-Sleeper bus via road travel is around 15h 15m (appx.). Book Now
Q. What is the cheapest bus fare between Chittoor to Tekkali Travel on Goibibo?
A. The cheapest bus fare available between Chittoor to Tekkali is ₹ 1262. Book Now
Q. What are the popular bus operators currently serving buses for Chittoor to Tekkali route?
A. Our top bus operators for Chittoor to Tekkali bus route are: Express Line, Gopinath Travels, Naveen Tours and Travels, Northern Travels, Ranadeep Travels, Royal Cruze Tours and Travels, Shree Manikanta Travels, Shyamoli Paribahan Pvt Ltd, Sri Keerthana Sai Travels, Sri Tulasi Tours and Travels Book Now
Boarding points in Chittoor
- Chittoor by-pass
- Chittoor Bypass
- CHITOOR BYPASS
- Chittoor By Pass Infront Of Hotel Heavn
- CHITTOOR BY-PASS
- By Pass Coffe day
- CHITTOOR BYPSASS
- Chitoor
- Chittoor By Pass
- Chittoor
Dropping points in Tekkali
- Tekkali
- Tekali Bypass On highway near jagati metta junction
- Tekkali Bypass
- TEKKALI BYPASS
- Bus stand
Top routes from Chittoor
- Chittoor to Bangalore Bus
- Chittoor to Hyderabad Bus
- Chittoor to Vijayawada Bus
- Chittoor to Visakhapatnam Bus
- Chittoor to Kurnool Bus
- Chittoor to Guntur Bus
- Chittoor to Chennai Bus
- Chittoor to Coimbatore Bus
- Chittoor to Madurai Bus
- Chittoor to Anantapur Bus
- Chittoor to Rajahmundry Bus
- Chittoor to Tiruchirapalli Bus
- Chittoor to Kadapa Bus
- Chittoor to Nandyal Bus
- Chittoor to Nellore Bus
- Chittoor to Bhadrachalam Bus
- Chittoor to Bhubaneswar Bus
- Chittoor to Ravulapalem Bus
- Chittoor to Nagercoil Bus
- Chittoor to Kakinada Bus
- Chittoor to Eluru Bus
- Chittoor to Ramachandrapuram Bus
- Chittoor to Salem Bus
- Chittoor to Tekkali Bus
- Chittoor to Tirupati Bus
- Chittoor to Tadepalligudem Bus
- Chittoor to Martur Bus
- Chittoor to Kumbakonam Bus
- Chittoor to Machilipatnam Bus
- Chittoor to Mydukur Bus
- Chittoor to Jaggampeta Bus
- Chittoor to Tanuku Bus
- Chittoor to Vellore Bus
- Chittoor to Palamaner Bus
- Chittoor to Guduru (Andhra Pradesh) Bus
- Chittoor to Tp Gudem Bypass Bus
- Chittoor to Allagadda Bus
- Chittoor to Katpadi Bus
- Chittoor to Kolar Bus
- Chittoor to Nallajerla Bus
Top routes to Chittoor
- Hyderabad to Chittoor Bus
- Bangalore to Chittoor Bus
- Vijayawada to Chittoor Bus
- Visakhapatnam to Chittoor Bus
- Kurnool to Chittoor Bus
- Anantapur to Chittoor Bus
- Chennai to Chittoor Bus
- Madurai to Chittoor Bus
- Guntur to Chittoor Bus
- Ongole to Chittoor Bus
- Rajahmundry to Chittoor Bus
- Eluru to Chittoor Bus
- Kadapa to Chittoor Bus
- Nandyal to Chittoor Bus
- Coimbatore to Chittoor Bus
- Kakinada to Chittoor Bus
- Nellore to Chittoor Bus
- Tiruchirapalli to Chittoor Bus
- Ravulapalem to Chittoor Bus
- Hindupur to Chittoor Bus
- Pondicherry to Chittoor Bus
- Bhubaneswar to Chittoor Bus
- Tiruchendur to Chittoor Bus
- Tanuku to Chittoor Bus
- Narketpalli (Telangana) to Chittoor Bus
- Thanjavur to Chittoor Bus
- Thiruvananthapuram to Chittoor Bus
- Namakkal to Chittoor Bus
- Chilakaluripet to Chittoor Bus
- Kavali to Chittoor Bus
- Tadepalligudem to Chittoor Bus
- Jaggampeta to Chittoor Bus
- Vellore to Chittoor Bus
- Kolar to Chittoor Bus
- Tp Gudem Bypass to Chittoor Bus
- Mydukur to Chittoor Bus
- Guduru (Andhra Pradesh) to Chittoor Bus
- Allagadda to Chittoor Bus
- Salem to Chittoor Bus
- Nallajerla to Chittoor Bus
Top routes to Tekkali
- Hyderabad to Tekkali Bus
- Vijayawada to Tekkali Bus
- Rajahmundry to Tekkali Bus
- Visakhapatnam to Tekkali Bus
- Bangalore to Tekkali Bus
- Nellore to Tekkali Bus
- Chittoor to Tekkali Bus
- Bhubaneswar to Tekkali Bus
- Amalapuram to Tekkali Bus
- Guntur to Tekkali Bus
- Ongole to Tekkali Bus
- Khordha to Tekkali Bus
- Gannavaram to Tekkali Bus
- Hanuman Junction to Tekkali Bus
- Kakinada to Tekkali Bus
- Tirupati to Tekkali Bus
- Eluru to Tekkali Bus
- Tanuku to Tekkali Bus
- Annavaram to Tekkali Bus
- Bhimadolu to Tekkali Bus
- Jaggampeta to Tekkali Bus
- Tuni to Tekkali Bus
- Anakapalle to Tekkali Bus
- Nallajerla to Tekkali Bus
- Chilakaluripet to Tekkali Bus
- Yerravaram to Tekkali Bus
- Srikakulam to Tekkali Bus
- Ravulapalem to Tekkali Bus
- Suryapet to Tekkali Bus
- Palasa to Tekkali Bus
- Martur to Tekkali Bus
- Yernagudem to Tekkali Bus
- Howrah to Tekkali Bus
- Kolkata to Tekkali Bus
- Dubacherla to Tekkali Bus
- Tagarapuvalasa to Tekkali Bus
- Kodad to Tekkali Bus
- Kharagpur to Tekkali Bus
- Chityala to Tekkali Bus
- Ranasthalam to Tekkali Bus
Top routes from Tekkali
- Tekkali to Hyderabad Bus
- Tekkali to Vijayawada Bus
- Tekkali to Visakhapatnam Bus
- Tekkali to Rajahmundry Bus
- Tekkali to Bangalore Bus
- Tekkali to Tanuku Bus
- Tekkali to Chennai Bus
- Tekkali to Guntur Bus
- Tekkali to Ongole Bus
- Tekkali to Nellore Bus
- Tekkali to Bhubaneswar Bus
- Tekkali to Kakinada Bus
- Tekkali to Gannavaram Bus
- Tekkali to Chilakaluripet Bus
- Tekkali to Eluru Bus
- Tekkali to Hanuman Junction Bus
- Tekkali to Bhadrachalam Bus
- Tekkali to Amalapuram Bus
- Tekkali to Annavaram Bus
- Tekkali to Tuni Bus
- Tekkali to Anakapalle Bus
- Tekkali to Srikakulam Bus
- Tekkali to Jaggampeta Bus
- Tekkali to Bhimadolu Bus
- Tekkali to Nallajerla Bus
- Tekkali to Rajanagaram Bus
- Tekkali to Yerravaram Bus
- Tekkali to Kovvur Bus
- Tekkali to Tirupati Bus
- Tekkali to Devarapalli Bus
- Tekkali to Diwancheruvu Bus
- Tekkali to Narketpalli (Telangana) Bus
- Tekkali to Tagarapuvalasa Bus
- Tekkali to Dubacherla Bus
- Tekkali to Chatrapur Bus
- Tekkali to Howrah Bus
- Tekkali to Ranasthalam Bus
- Tekkali to Choutuppal Bus
- Tekkali to Kharagpur Bus
- Tekkali to Kolkata Bus
- Tekkali to Chittoor Bus
Popular cities near Chittoor
- Bangalore Bus
- Nellore Bus
- Tirupati Bus
- Kavali Bus
- Naidupeta Bus
- Tirupati (Ap) Bus
- Srikalahasthi Bus
- Tiruvannamalai Bus
- Palamaner Bus
- Vellore Bus
- Ongole Bus
- Guduru (Andhra Pradesh) Bus
- Kadapa Bus
- Katpadi Bus
- Mydukur Bus
- Kolar Bus
- Singarayakonda Bus
- Allagadda Bus
- Pondicherry Bus
- Salem Bus
- Tanguturu Bus
- Nandyal Bus
- Dharmapuri Bus
- Krishnagiri Bus
- Rayachoti Bus
- Rajampet Bus
- Pileru Bus
- Ambur Bus
Popular cities near Tekkali
- Visakhapatnam Bus
- Srikakulam Bus
- Bhubaneswar Bus
- Anakapalle Bus
- Tuni Bus
- Narasannapeta Bus
- Ichchapuram Bus
- Sompeta Bus
- Khordha Bus
- Annavaram Bus
- Nakkapalli Bus
- Palasa Bus
- Tagarapuvalasa Bus
- Chatrapur Bus
- Ranasthalam Bus
- Vijayanagaram Bus
- Tangi Bus
- Jaggampeta Bus
- Yerravaram Bus
- Yelamanchili Bus
- Pydibimavaram Bus
- Cuttack Bus
- Rajahmundry Bus
Top Bus Operators Between Chittoor and Tekkali
- Shyamoli Paribahan Pvt Ltd Bus
- Sri Keerthana Sai Travels Bus
- Sri Tulasi Tours and Travels Bus
- Ranadeep Travels Bus
- Northern Travels Bus
- Deshyatri Logistics LLP Bus
- Royal Cruze Tours and Travels Bus
- Express Line Bus
- Gowthami Tours and Travels Bus
- CVR Travels Bus
- Shree Manikanta Travels Bus
- Naveen Tours and Travels Bus
- Sri Neeladri Travels Bus
- Gopinath Travels Bus
- Horma Travels Bus
- APSRTC Bus
Top Bus Operators from Chittoor
- Chittoor to Bangalore APSRTC Bus
- Chittoor to Hyderabad Jagan Travels Bus
- Chittoor to Chennai APSRTC Bus
- Chittoor to Vijayawada IRA Travels Bus
- Chittoor to Anantapur APSRTC Bus
- Chittoor to Kurnool FLIXBUS Bus
- Chittoor to Visakhapatnam FLIXBUS Bus
- Chittoor to Coimbatore No 1 Air Travels Bus
- Chittoor to Kadapa APSRTC Bus
- Chittoor to Tiruchirapalli Sri renganathan travels Bus
- Chittoor to Nandyal APSRTC Bus
Top Bus Operators to Tekkali
- Hyderabad to Tekkali Manikanta Travels Bus
- Vijayawada to Tekkali Prathap Travels Bus
- Rajahmundry to Tekkali APSRTC Bus
- Visakhapatnam to Tekkali APSRTC Bus
- Bangalore to Tekkali Sri Tulasi Tours and Travels Bus
- Amalapuram to Tekkali APSRTC Bus
- Chittoor to Tekkali Shyamoli Paribahan Pvt Ltd Bus
- Nellore to Tekkali Shyamoli Paribahan Pvt Ltd Bus
- Khordha to Tekkali SVR Tours and Travels Bus
- Gannavaram to Tekkali Sri KVR Travels Bus
- Kakinada to Tekkali APSRTC Bus
Hotels in Chittoor
Hotels in Tekkali
Volvo AC Semi-Sleeper Bus from Chittoor
- Chittoor to Bangalore Volvo AC Semi-Sleeper Bus
- Chittoor to Hyderabad Volvo AC Semi-Sleeper Bus
- Chittoor to Vijayawada Volvo AC Semi-Sleeper Bus
- Chittoor to Visakhapatnam Volvo AC Semi-Sleeper Bus
- Chittoor to Kurnool Volvo AC Semi-Sleeper Bus
- Chittoor to Guntur Volvo AC Semi-Sleeper Bus
- Chittoor to Chennai Volvo AC Semi-Sleeper Bus
- Chittoor to Coimbatore Volvo AC Semi-Sleeper Bus
- Chittoor to Madurai Volvo AC Semi-Sleeper Bus
- Chittoor to Anantapur Volvo AC Semi-Sleeper Bus
- Chittoor to Rajahmundry Volvo AC Semi-Sleeper Bus
- Chittoor to Tiruchirapalli Volvo AC Semi-Sleeper Bus
- Chittoor to Kadapa Volvo AC Semi-Sleeper Bus
- Chittoor to Nandyal Volvo AC Semi-Sleeper Bus
- Chittoor to Nellore Volvo AC Semi-Sleeper Bus
- Chittoor to Bhadrachalam Volvo AC Semi-Sleeper Bus
- Chittoor to Bhubaneswar Volvo AC Semi-Sleeper Bus
- Chittoor to Ravulapalem Volvo AC Semi-Sleeper Bus
- Chittoor to Nagercoil Volvo AC Semi-Sleeper Bus
- Chittoor to Kakinada Volvo AC Semi-Sleeper Bus
- Chittoor to Eluru Volvo AC Semi-Sleeper Bus
- Chittoor to Ramachandrapuram Volvo AC Semi-Sleeper Bus
- Chittoor to Salem Volvo AC Semi-Sleeper Bus
- Chittoor to Tirupati Volvo AC Semi-Sleeper Bus
- Chittoor to Tadepalligudem Volvo AC Semi-Sleeper Bus
- Chittoor to Martur Volvo AC Semi-Sleeper Bus
- Chittoor to Kumbakonam Volvo AC Semi-Sleeper Bus
- Chittoor to Machilipatnam Volvo AC Semi-Sleeper Bus
- Chittoor to Mydukur Volvo AC Semi-Sleeper Bus
- Chittoor to Jaggampeta Volvo AC Semi-Sleeper Bus
- Chittoor to Tanuku Volvo AC Semi-Sleeper Bus
- Chittoor to Vellore Volvo AC Semi-Sleeper Bus
- Chittoor to Palamaner Volvo AC Semi-Sleeper Bus
- Chittoor to Guduru (Andhra Pradesh) Volvo AC Semi-Sleeper Bus
- Chittoor to Tp Gudem Bypass Volvo AC Semi-Sleeper Bus
- Chittoor to Allagadda Volvo AC Semi-Sleeper Bus
- Chittoor to Katpadi Volvo AC Semi-Sleeper Bus
- Chittoor to Kolar Volvo AC Semi-Sleeper Bus
- Chittoor to Nallajerla Volvo AC Semi-Sleeper Bus
Volvo AC Semi-Sleeper Bus to Tekkali
- Hyderabad to Tekkali Volvo AC Semi-Sleeper Bus
- Vijayawada to Tekkali Volvo AC Semi-Sleeper Bus
- Rajahmundry to Tekkali Volvo AC Semi-Sleeper Bus
- Visakhapatnam to Tekkali Volvo AC Semi-Sleeper Bus
- Bangalore to Tekkali Volvo AC Semi-Sleeper Bus
- Nellore to Tekkali Volvo AC Semi-Sleeper Bus
- Bhubaneswar to Tekkali Volvo AC Semi-Sleeper Bus
- Amalapuram to Tekkali Volvo AC Semi-Sleeper Bus
- Guntur to Tekkali Volvo AC Semi-Sleeper Bus
- Ongole to Tekkali Volvo AC Semi-Sleeper Bus
- Khordha to Tekkali Volvo AC Semi-Sleeper Bus
- Gannavaram to Tekkali Volvo AC Semi-Sleeper Bus
- Hanuman Junction to Tekkali Volvo AC Semi-Sleeper Bus
- Kakinada to Tekkali Volvo AC Semi-Sleeper Bus
- Tirupati to Tekkali Volvo AC Semi-Sleeper Bus
- Eluru to Tekkali Volvo AC Semi-Sleeper Bus
- Tanuku to Tekkali Volvo AC Semi-Sleeper Bus
- Annavaram to Tekkali Volvo AC Semi-Sleeper Bus
- Bhimadolu to Tekkali Volvo AC Semi-Sleeper Bus
- Jaggampeta to Tekkali Volvo AC Semi-Sleeper Bus
- Tuni to Tekkali Volvo AC Semi-Sleeper Bus
- Anakapalle to Tekkali Volvo AC Semi-Sleeper Bus
- Nallajerla to Tekkali Volvo AC Semi-Sleeper Bus
- Chilakaluripet to Tekkali Volvo AC Semi-Sleeper Bus
- Yerravaram to Tekkali Volvo AC Semi-Sleeper Bus
- Srikakulam to Tekkali Volvo AC Semi-Sleeper Bus
- Ravulapalem to Tekkali Volvo AC Semi-Sleeper Bus
- Suryapet to Tekkali Volvo AC Semi-Sleeper Bus
- Palasa to Tekkali Volvo AC Semi-Sleeper Bus
- Martur to Tekkali Volvo AC Semi-Sleeper Bus
- Yernagudem to Tekkali Volvo AC Semi-Sleeper Bus
- Howrah to Tekkali Volvo AC Semi-Sleeper Bus
- Kolkata to Tekkali Volvo AC Semi-Sleeper Bus
- Dubacherla to Tekkali Volvo AC Semi-Sleeper Bus
- Tagarapuvalasa to Tekkali Volvo AC Semi-Sleeper Bus
- Kodad to Tekkali Volvo AC Semi-Sleeper Bus
- Kharagpur to Tekkali Volvo AC Semi-Sleeper Bus
- Chityala to Tekkali Volvo AC Semi-Sleeper Bus
- Ranasthalam to Tekkali Volvo AC Semi-Sleeper Bus
Popular Volvo City Buses
- Bangalore Volvo Bus
- Ramachandrapuram Volvo Bus
- Nellore Volvo Bus
- Madurai Volvo Bus
- Coimbatore Volvo Bus
- Kakinada Volvo Bus
- Rajahmundry Volvo Bus
- Kovvur Volvo Bus
- Tagarapuvalasa Volvo Bus
- Ravulapalem Volvo Bus
- Diwancheruvu Volvo Bus
- Yerravaram Volvo Bus
- Visakhapatnam Volvo Bus
- Chittoor Volvo Bus
- Ranasthalam Volvo Bus
- Dubacherla Volvo Bus
- Tp Gudem Bypass Volvo Bus
- Thiruvananthapuram Volvo Bus
- Nandyal Volvo Bus
- Anakapalle Volvo Bus
- Tuni Volvo Bus
- Kharagpur Volvo Bus
- Guntur Volvo Bus
- Thanjavur Volvo Bus
- Katpadi Volvo Bus
- Vellore Volvo Bus
- Chatrapur Volvo Bus
- Kumbakonam Volvo Bus
- Ongole Volvo Bus
- Narketpalli (Telangana) Volvo Bus
- Bhimadolu Volvo Bus
- Hyderabad Volvo Bus
- Tanuku Volvo Bus
- Yernagudem Volvo Bus
- Khordha Volvo Bus
- Annavaram Volvo Bus
- Kolkata Volvo Bus
- Suryapet Volvo Bus
- Kodad Volvo Bus
- Devarapalli Volvo Bus
- Allagadda Volvo Bus
- Kavali Volvo Bus
- Srikakulam Volvo Bus
- Eluru Volvo Bus
- Chennai Volvo Bus
- Vijayawada Volvo Bus
- Namakkal Volvo Bus
- Kurnool Volvo Bus
- Bhadrachalam Volvo Bus
- Machilipatnam Volvo Bus
- Mydukur Volvo Bus
- Hanuman Junction Volvo Bus
- Tiruchendur Volvo Bus
- Anantapur Volvo Bus
- Chilakaluripet Volvo Bus
- Nallajerla Volvo Bus
- Gannavaram Volvo Bus
- Pondicherry Volvo Bus
- Rajanagaram Volvo Bus
- Amalapuram Volvo Bus
- Kolar Volvo Bus
- Guduru (Andhra Pradesh) Volvo Bus
- Tadepalligudem Volvo Bus
- Palasa Volvo Bus
- Jaggampeta Volvo Bus
- Salem Volvo Bus
- Howrah Volvo Bus
- Tiruchirapalli Volvo Bus
- Bhubaneswar Volvo Bus
- Hindupur Volvo Bus
- Nagercoil Volvo Bus
- Palamaner Volvo Bus
- Chityala Volvo Bus
- Tekkali Volvo Bus
- Martur Volvo Bus
- Tirupati Volvo Bus
- Choutuppal Volvo Bus
- Kadapa Volvo Bus