SV Drop Taxi
Book Your Ride
Thiruvallur - Valliyur
764.7 km · 15h 18m

Thiruvallur to Valliyur Drop Taxi

From ₹11,106 one way

Call +917708672631 for instant booking

Thiruvallur to Valliyur drop taxi

764.7 km
~15 hr 18 min
Pay one-way only, no return charge

The driving distance from Thiruvallur to Valliyur is 764.7 km, taking approximately 15 hr 18 min by road. SV Drop Taxi provides one-way and round-trip taxi services on this route with AC vehicles and experienced drivers at no extra charge.

At 764.7 km, the Thiruvallur to Valliyur route is a long-distance journey. A dedicated drop taxi is often cheaper and more comfortable than last-minute flight tickets, especially for families. You travel on your schedule with no airport hassles.

Plan an early morning start for this 15 hr 18 min drive. Your experienced driver knows the best rest stops along the way.

Thiruvallur to Valliyur taxi fare

Vehicle One way fare Round trip fare
Hatchback ₹11,106 ₹20,382
Sedan ₹11,106 ₹20,382
SUV ₹14,929 ₹28,029
Innova ₹15,694 ₹29,559
Innova Crysta ₹19,518 ₹35,676

* Fares are approximate and include driver batta. Toll charges, parking, and permit fees are extra.

For long-distance travel, SV Drop Taxi recommends an Innova or Innova Crysta for maximum comfort. All fares include driver batta and AC; no hidden charges.

About Thiruvallur

Thiruvallur is a temple town on the northwestern fringe of Chennai, centered around the ancient Veeraraghava Perumal Temple dedicated to Lord Vishnu. Once a quiet agrarian settlement, the district has transformed into a fast-growing suburban corridor fueled by IT parks, manufacturing units, and Chennai's expanding metro footprint. The Poondi and Cholavaram reservoirs in this district supply a significant portion of Chennai's drinking water.

Veeraraghava Perumal TempleChennai suburbPoondi ReservoirGrowing IT corridor

Need the return trip?

Valliyur to Thiruvallur

764.7 km ~15 hr 18 min Starting from ₹11,106

Popular routes from Thiruvallur

Thiruvallur to Adirampattinam Taxi Service Book Taxi Thiruvallur to Aduthurai Thiruvallur to Alandur Taxi Thiruvallur to Alangudi One Way Taxi Thiruvallur to Ambasamudram One Way Taxi Thiruvallur to Ambattur Cab Thiruvallur to Ambur Cab Thiruvallur to Arakkonam Drop Taxi Thiruvallur to Arani Taxi Service Thiruvallur to Aranthangi Taxi Thiruvallur to Aravakurichi Call Taxi Thiruvallur to Arcot Cab Thiruvallur to Ariyalur One Way Taxi Thiruvallur to Aruppukkottai One Way Taxi Thiruvallur to Attur Taxi Thiruvallur to Avadi Drop Taxi Thiruvallur to Avinashi Drop Taxi Thiruvallur to Bangalore Call Taxi Thiruvallur to Bargur Taxi Service Thiruvallur to Batlagundu Drop Taxi Book Taxi Thiruvallur to Bhavani Thiruvallur to Bodinayakkanur Taxi Service Thiruvallur to Chengalpattu One Way Taxi Thiruvallur to Chengam Call Taxi Thiruvallur to Chennai Call Taxi Book Taxi Thiruvallur to Chetpet Thiruvallur to Cheyyar Call Taxi Thiruvallur to Chidambaram Drop Taxi Book Taxi Thiruvallur to Chinna Salem Thiruvallur to Chittoor Taxi Service Thiruvallur to Cochin Cab Thiruvallur to Coimbatore Drop Taxi Thiruvallur to Coonoor Call Taxi Thiruvallur to Courtallam Taxi Service Thiruvallur to Cuddalore Taxi Thiruvallur to Cumbum Call Taxi Thiruvallur to Devakottai Drop Taxi Book Taxi Thiruvallur to Devipattinam Thiruvallur to Dharapuram Taxi Service Thiruvallur to Dharmapuri One Way Taxi Thiruvallur to Dindigul Call Taxi Book Taxi Thiruvallur to Erode Thiruvallur to Gingee Taxi Service Thiruvallur to Goa Cab Thiruvallur to Gobichettipalayam Drop Taxi Thiruvallur to Gudalur Cab Thiruvallur to Gudiyatham Call Taxi Thiruvallur to Guntur Call Taxi Thiruvallur to Harur Call Taxi Thiruvallur to Hogenakkal Drop Taxi Book Taxi Thiruvallur to Hosur Thiruvallur to Hyderabad Taxi Thiruvallur to Ilayangudi Drop Taxi Thiruvallur to Jayamkondam Drop Taxi Thiruvallur to Jolarpettai Taxi Thiruvallur to Kadambur Call Taxi Thiruvallur to Kalahasti Call Taxi Thiruvallur to Kalambur Drop Taxi Thiruvallur to Kalayarkoil Taxi Service Thiruvallur to Kallakurichi Call Taxi Thiruvallur to Kalpakkam One Way Taxi Thiruvallur to Kanchipuram Drop Taxi Thiruvallur to Kangayam Taxi Thiruvallur to Kanyakumari One Way Taxi Thiruvallur to Karaikal Cab Book Taxi Thiruvallur to Karaikkudi Thiruvallur to Karur Taxi Thiruvallur to Katpadi Cab Book Taxi Thiruvallur to Kattumannarkovil Thiruvallur to Kavali Drop Taxi Thiruvallur to Kilpennathur Taxi Service Thiruvallur to Kodaikanal Call Taxi Thiruvallur to Kodumudi Call Taxi Thiruvallur to Koodankulam Call Taxi Book Taxi Thiruvallur to Koothanallur Book Taxi Thiruvallur to Kottampatti Thiruvallur to Kovilpatti One Way Taxi Thiruvallur to Krishnagiri Call Taxi Thiruvallur to Kulithalai Drop Taxi Book Taxi Thiruvallur to Kumbakonam Book Taxi Thiruvallur to Kurichi Thiruvallur to Kurnool Cab Thiruvallur to Lalgudi Call Taxi Thiruvallur to Madanapalli Taxi Thiruvallur to Madavaram Cab Thiruvallur to Madurai Taxi Service Book Taxi Thiruvallur to Madurantakam Thiruvallur to Mahabalipuram Cab Thiruvallur to Mailam One Way Taxi Book Taxi Thiruvallur to Manamadurai Thiruvallur to Manamelkudi Taxi Thiruvallur to Manaparai One Way Taxi Thiruvallur to Mannarkudi Cab Book Taxi Thiruvallur to Marakanam Thiruvallur to Marthandam One Way Taxi Thiruvallur to Mayiladuthurai Call Taxi Book Taxi Thiruvallur to Melmalayanur Thiruvallur to Melmaruvathur Taxi Thiruvallur to Melur Taxi Service Thiruvallur to Mettupalayam One Way Taxi Thiruvallur to Mettur Drop Taxi Thiruvallur to Mohanur Cab Thiruvallur to Munnar One Way Taxi Thiruvallur to Musiri Taxi Thiruvallur to Mysore Call Taxi Thiruvallur to Nagapattinam Taxi Thiruvallur to Nagercoil Taxi Thiruvallur to Naidupeta Call Taxi Thiruvallur to Namakkal Taxi Service Thiruvallur to Nannilam Taxi Service Thiruvallur to Natham One Way Taxi Thiruvallur to Needamangalam Cab Thiruvallur to Nellore Taxi Thiruvallur to Neyveli Drop Taxi Thiruvallur to Nilakottai Call Taxi Thiruvallur to Nilgiris One Way Taxi Thiruvallur to Oddanchatram One Way Taxi Thiruvallur to Odugathur Taxi Thiruvallur to Ongole Drop Taxi Book Taxi Thiruvallur to Ooty Thiruvallur to Palakkad Drop Taxi Thiruvallur to Palamaner Cab Thiruvallur to Palani Cab Thiruvallur to Palladam Drop Taxi Thiruvallur to Pallavaram Taxi Service Thiruvallur to Panruti Taxi Thiruvallur to Papanasam Drop Taxi Thiruvallur to Paramakudi One Way Taxi Thiruvallur to Paramathi Taxi Book Taxi Thiruvallur to Parangipettai Thiruvallur to Paranur One Way Taxi Thiruvallur to Pattukkottai Taxi Book Taxi Thiruvallur to Penagaram Book Taxi Thiruvallur to Pennadam Thiruvallur to Perambalur Cab Thiruvallur to Peravurani Taxi Thiruvallur to Periyakulam Drop Taxi Thiruvallur to Perundurai One Way Taxi Book Taxi Thiruvallur to Pillayarpatti Thiruvallur to Pochampalli Taxi Thiruvallur to Pollachi One Way Taxi Thiruvallur to Polur Taxi Thiruvallur to Pondicherry Taxi Thiruvallur to Ponnamaravathi Drop Taxi Thiruvallur to Poompuhar Drop Taxi Thiruvallur to Pudukkottai Cab Thiruvallur to Puttur Call Taxi Thiruvallur to Rajapalayam Call Taxi Thiruvallur to Ramanathapuram Taxi Thiruvallur to Rameswaram Taxi Service Thiruvallur to Ranipet Taxi Thiruvallur to Rasipuram Drop Taxi Thiruvallur to Salem Taxi Service Thiruvallur to Samayapuram Cab Thiruvallur to Sankagiri Taxi Service Thiruvallur to Sankarankovil Taxi Service Book Taxi Thiruvallur to Sathyamangalam Thiruvallur to Sattur One Way Taxi Thiruvallur to Sethiyathope Cab Thiruvallur to Sholinghur Drop Taxi Thiruvallur to Sirkazhi Drop Taxi Book Taxi Thiruvallur to Sivaganga Book Taxi Thiruvallur to Sivakasi Thiruvallur to Srikalahasti Drop Taxi Thiruvallur to Srirangam Taxi Book Taxi Thiruvallur to Srivilliputhur Thiruvallur to Tambaram Taxi Service Thiruvallur to Tenkasi Taxi Service Thiruvallur to Thanjavur Call Taxi Thiruvallur to Tharangambadi One Way Taxi Thiruvallur to Theni Drop Taxi Thiruvallur to Thiruchendur Taxi Service Thiruvallur to Thirukadaiyur Taxi Thiruvallur to Thirukoilure Cab Thiruvallur to Thirumangalam Cab Thiruvallur to Thirumayam Call Taxi Thiruvallur to Thirunallar Taxi Service Book Taxi Thiruvallur to Thiruthuraipoondi Thiruvallur to Thiruttani Taxi Thiruvallur to Thiruvaiyaru One Way Taxi Book Taxi Thiruvallur to Thiruvananthapuram Thiruvallur to Thiruvarur One Way Taxi Thiruvallur to Thondi Drop Taxi Thiruvallur to Thoothukudi Taxi Book Taxi Thiruvallur to Thrissur Thiruvallur to Thuraiyur Cab Thiruvallur to Thuvarankuruchi Cab Thiruvallur to Tindivanam Drop Taxi Thiruvallur to Tiruchengode Taxi Service Thiruvallur to Tirumala Drop Taxi Thiruvallur to Tirunelveli Taxi Thiruvallur to Tirupathur Taxi Service Thiruvallur to Tirupati Cab Thiruvallur to Tiruppur One Way Taxi Thiruvallur to Tiruvannamalai Drop Taxi Thiruvallur to Tiruvottiyur Call Taxi Thiruvallur to Tittakudi One Way Taxi Thiruvallur to Trichy Cab Thiruvallur to Udumalapettai Cab Thiruvallur to Ulundurpettai Call Taxi Thiruvallur to Usilampatti One Way Taxi Thiruvallur to Uthangarai Taxi Service Thiruvallur to Vadalur Cab Thiruvallur to Vaitheeswarankoil Taxi Service Thiruvallur to Valliyur Drop Taxi Thiruvallur to Valparai One Way Taxi Thiruvallur to Vandavasi Taxi Book Taxi Thiruvallur to Vaniyambadi Thiruvallur to Vedaranyam Drop Taxi Book Taxi Thiruvallur to Velankanni Thiruvallur to Vellakoil Cab Thiruvallur to Vellore Taxi Thiruvallur to Vettavalam Call Taxi Thiruvallur to Vijayawada Cab Book Taxi Thiruvallur to Vikravandi Thiruvallur to Viluppuram Taxi Service Thiruvallur to Viralimalai Cab Thiruvallur to Virudhachalam Taxi Thiruvallur to Virudhunagar Drop Taxi Thiruvallur to Yelagiri Call Taxi Thiruvallur to Yercaud Taxi Service

Popular routes from Valliyur

Book Taxi Adirampattinam to Valliyur Aduthurai to Valliyur Call Taxi Alandur to Valliyur One Way Taxi Book Taxi Alangudi to Valliyur Ambasamudram to Valliyur Cab Ambattur to Valliyur Call Taxi Ambur to Valliyur Taxi Arakkonam to Valliyur Cab Book Taxi Arani to Valliyur Aranthangi to Valliyur Drop Taxi Aravakurichi to Valliyur Taxi Service Arcot to Valliyur Cab Ariyalur to Valliyur Call Taxi Aruppukkottai to Valliyur One Way Taxi Attur to Valliyur Taxi Service Avadi to Valliyur Taxi Avinashi to Valliyur One Way Taxi Bangalore to Valliyur One Way Taxi Bargur to Valliyur Taxi Service Batlagundu to Valliyur One Way Taxi Bhavani to Valliyur Call Taxi Bodinayakkanur to Valliyur Drop Taxi Chengalpattu to Valliyur Taxi Book Taxi Chengam to Valliyur Book Taxi Chennai to Valliyur Chetpet to Valliyur Cab Cheyyar to Valliyur One Way Taxi Chidambaram to Valliyur Cab Chinna Salem to Valliyur One Way Taxi Book Taxi Chittoor to Valliyur Cochin to Valliyur One Way Taxi Coimbatore to Valliyur Taxi Coonoor to Valliyur Taxi Courtallam to Valliyur Drop Taxi Book Taxi Cuddalore to Valliyur Cumbum to Valliyur One Way Taxi Book Taxi Devakottai to Valliyur Book Taxi Devipattinam to Valliyur Book Taxi Dharapuram to Valliyur Book Taxi Dharmapuri to Valliyur Dindigul to Valliyur Taxi Service Erode to Valliyur Taxi Service Gingee to Valliyur Cab Goa to Valliyur Cab Gobichettipalayam to Valliyur Drop Taxi Gudalur to Valliyur Call Taxi Gudiyatham to Valliyur Drop Taxi Guntur to Valliyur One Way Taxi Harur to Valliyur Call Taxi Hogenakkal to Valliyur Taxi Service Hosur to Valliyur Taxi Service Hyderabad to Valliyur Taxi Book Taxi Ilayangudi to Valliyur Jayamkondam to Valliyur One Way Taxi Jolarpettai to Valliyur Call Taxi Kadambur to Valliyur Drop Taxi Kalahasti to Valliyur One Way Taxi Kalambur to Valliyur Taxi Service Kalayarkoil to Valliyur Drop Taxi Kallakurichi to Valliyur Drop Taxi Kalpakkam to Valliyur One Way Taxi Kanchipuram to Valliyur Drop Taxi Book Taxi Kangayam to Valliyur Kanyakumari to Valliyur Drop Taxi Karaikal to Valliyur Cab Karaikkudi to Valliyur Call Taxi Karur to Valliyur Drop Taxi Katpadi to Valliyur Taxi Kattumannarkovil to Valliyur Call Taxi Kavali to Valliyur Call Taxi Kilpennathur to Valliyur Taxi Service Kodaikanal to Valliyur Taxi Kodumudi to Valliyur Cab Koodankulam to Valliyur Taxi Koothanallur to Valliyur Taxi Kottampatti to Valliyur One Way Taxi Kovilpatti to Valliyur Cab Book Taxi Krishnagiri to Valliyur Kulithalai to Valliyur Taxi Kumbakonam to Valliyur Taxi Service Kurichi to Valliyur Call Taxi Kurnool to Valliyur Drop Taxi Lalgudi to Valliyur One Way Taxi Madanapalli to Valliyur Call Taxi Madavaram to Valliyur Cab Madurai to Valliyur One Way Taxi Book Taxi Madurantakam to Valliyur Mahabalipuram to Valliyur Cab Mailam to Valliyur Taxi Service Manamadurai to Valliyur Cab Manamelkudi to Valliyur Cab Manaparai to Valliyur Taxi Mannarkudi to Valliyur Call Taxi Marakanam to Valliyur Call Taxi Marthandam to Valliyur One Way Taxi Mayiladuthurai to Valliyur Taxi Service Book Taxi Melmalayanur to Valliyur Melmaruvathur to Valliyur Call Taxi Melur to Valliyur Call Taxi Mettupalayam to Valliyur Cab Mettur to Valliyur Taxi Service Mohanur to Valliyur Taxi Service Munnar to Valliyur Drop Taxi Musiri to Valliyur Taxi Service Mysore to Valliyur Call Taxi Nagapattinam to Valliyur One Way Taxi Nagercoil to Valliyur One Way Taxi Naidupeta to Valliyur Drop Taxi Book Taxi Namakkal to Valliyur Nannilam to Valliyur Drop Taxi Natham to Valliyur One Way Taxi Needamangalam to Valliyur Cab Nellore to Valliyur Cab Neyveli to Valliyur Drop Taxi Book Taxi Nilakottai to Valliyur Nilgiris to Valliyur Drop Taxi Oddanchatram to Valliyur Taxi Book Taxi Odugathur to Valliyur Ongole to Valliyur Call Taxi Ooty to Valliyur One Way Taxi Palakkad to Valliyur Taxi Palamaner to Valliyur Call Taxi Palani to Valliyur One Way Taxi Palladam to Valliyur Taxi Pallavaram to Valliyur Call Taxi Panruti to Valliyur One Way Taxi Papanasam to Valliyur Call Taxi Paramakudi to Valliyur Taxi Paramathi to Valliyur Cab Parangipettai to Valliyur One Way Taxi Paranur to Valliyur Call Taxi Pattukkottai to Valliyur Taxi Penagaram to Valliyur One Way Taxi Pennadam to Valliyur Drop Taxi Perambalur to Valliyur Call Taxi Peravurani to Valliyur Taxi Periyakulam to Valliyur Drop Taxi Book Taxi Perundurai to Valliyur Pillayarpatti to Valliyur One Way Taxi Pochampalli to Valliyur One Way Taxi Book Taxi Pollachi to Valliyur Polur to Valliyur Taxi Service Pondicherry to Valliyur One Way Taxi Ponnamaravathi to Valliyur Call Taxi Poompuhar to Valliyur Cab Book Taxi Pudukkottai to Valliyur Puttur to Valliyur Cab Rajapalayam to Valliyur One Way Taxi Ramanathapuram to Valliyur Drop Taxi Rameswaram to Valliyur Call Taxi Ranipet to Valliyur Drop Taxi Rasipuram to Valliyur Call Taxi Salem to Valliyur Call Taxi Samayapuram to Valliyur One Way Taxi Book Taxi Sankagiri to Valliyur Sankarankovil to Valliyur Drop Taxi Sathyamangalam to Valliyur Drop Taxi Sattur to Valliyur Taxi Service Sethiyathope to Valliyur One Way Taxi Book Taxi Sholinghur to Valliyur Sirkazhi to Valliyur One Way Taxi Book Taxi Sivaganga to Valliyur Sivakasi to Valliyur Taxi Srikalahasti to Valliyur Cab Srirangam to Valliyur Taxi Service Srivilliputhur to Valliyur Call Taxi Tambaram to Valliyur Cab Tenkasi to Valliyur Cab Thanjavur to Valliyur Call Taxi Tharangambadi to Valliyur Taxi Service Book Taxi Theni to Valliyur Thiruchendur to Valliyur Cab Thirukadaiyur to Valliyur Taxi Thirukoilure to Valliyur Taxi Thirumangalam to Valliyur Drop Taxi Thirumayam to Valliyur Taxi Service Thirunallar to Valliyur Taxi Service Thiruthuraipoondi to Valliyur Taxi Service Thiruttani to Valliyur Taxi Service Thiruvaiyaru to Valliyur One Way Taxi Book Taxi Thiruvananthapuram to Valliyur Thiruvarur to Valliyur Drop Taxi Thondi to Valliyur Cab Book Taxi Thoothukudi to Valliyur Thrissur to Valliyur One Way Taxi Thuraiyur to Valliyur Drop Taxi Thuvarankuruchi to Valliyur Taxi Service Tindivanam to Valliyur Call Taxi Tiruchengode to Valliyur Drop Taxi Tirumala to Valliyur One Way Taxi Tirunelveli to Valliyur Cab Tirupathur to Valliyur Call Taxi Tirupati to Valliyur Call Taxi Book Taxi Tiruppur to Valliyur Tiruvannamalai to Valliyur Cab Tiruvottiyur to Valliyur Call Taxi Book Taxi Tittakudi to Valliyur Trichy to Valliyur Taxi Service Udumalapettai to Valliyur One Way Taxi Ulundurpettai to Valliyur Taxi Service Book Taxi Usilampatti to Valliyur Uthangarai to Valliyur Cab Book Taxi Vadalur to Valliyur Vaitheeswarankoil to Valliyur Taxi Valparai to Valliyur Drop Taxi Vandavasi to Valliyur Cab Vaniyambadi to Valliyur Call Taxi Vedaranyam to Valliyur Cab Velankanni to Valliyur Taxi Vellakoil to Valliyur Taxi Book Taxi Vellore to Valliyur Vettavalam to Valliyur One Way Taxi Book Taxi Vijayawada to Valliyur Vikravandi to Valliyur Call Taxi Viluppuram to Valliyur One Way Taxi Viralimalai to Valliyur Cab Virudhachalam to Valliyur Call Taxi Virudhunagar to Valliyur One Way Taxi Yelagiri to Valliyur Taxi Service Yercaud to Valliyur One Way Taxi

Nearby routes to Valliyur

Chennai to Valliyur Drop Taxi 780.3 km

Similar routes from Thiruvallur

Thiruvallur to Koodankulam Call Taxi 783.8 km Thiruvallur to Thiruvananthapuram Taxi 790 km Thiruvallur to Marthandam Call Taxi 797.2 km Thiruvallur to Ambasamudram Taxi Service 729.4 km Thiruvallur to Thiruchendur Taxi Service 718.2 km Thiruvallur to Courtallam One Way Taxi 714.5 km Thiruvallur to Kanyakumari One Way Taxi 698.4 km Thiruvallur to Nagercoil One Way Taxi 698.3 km

Why choose SV Drop Taxi?

  • ✓ One-way fare: Pay only for the distance you travel
  • ✓ No hidden charges: Transparent pricing with upfront fare estimate
  • ✓ 24/7 availability: Book anytime, travel anytime
  • ✓ Experienced drivers: Safe and comfortable travel
  • ✓ Free AC: Air conditioning included in all vehicles
One way taxi service → Round trip service → Airport transfer service →

Frequently asked questions

How far is Thiruvallur from Valliyur?
The driving distance from Thiruvallur to Valliyur is approximately 764.7 km by road, taking about 15 hr 18 min.
What is the taxi fare from Thiruvallur to Valliyur?
One-way taxi fares from Thiruvallur to Valliyur start at ₹11,106 for a hatchback. SUV and Innova options are also available at higher rates. All fares include driver batta and AC.
How long does it take to travel from Thiruvallur to Valliyur by taxi?
A taxi from Thiruvallur to Valliyur takes approximately 15 hr 18 min by road, depending on traffic and road conditions.
What car types are available for Thiruvallur to Valliyur drop taxi?
SV Drop Taxi offers Hatchback (4+1), Sedan (4+1), SUV (6+1), Innova (6+1), and Innova Crysta (7+1) for the Thiruvallur to Valliyur route. All vehicles come with AC and experienced drivers.
Is AC included in the Thiruvallur to Valliyur taxi fare?
Yes, air conditioning is included in all SV Drop Taxi vehicles at no extra charge. Toll charges, parking, and permit fees are billed separately.

Choose Your Ride

Sedan
Sedan
One Way Tariff - ₹14/km Round Trip Tariff - ₹13/km
Etios
|
4+1
|
AC
SUV
SUV
One Way Tariff - ₹19/km Round Trip Tariff - ₹18/km
Xylo
|
6+1
|
AC
Hatchback
Hatchback
One Way Tariff - ₹14/km Round Trip Tariff - ₹13/km
Swift
|
4+1
|
AC
Innova
Innova
One Way Tariff - ₹20/km Round Trip Tariff - ₹19/km
Innova
|
6+1
|
AC
Innova Crysta
Innova Crysta
One Way Tariff - ₹25/km Round Trip Tariff - ₹23/km
Crysta
|
7+1
|
AC

Popular Routes

Ready to book your ride?

Book now, confirm later. No advance payment required. Pay only for the distance you travel.

Call +917708672631